阅读说明：本技术 图像处理装置、显示控制方法和程序 (Image processing apparatus, display control method, and program ) 是由 青柳光俊 本地秀考 于 2019-08-15 设计创作，主要内容包括：本技术涉及一种图像处理装置、一种显示控制方法和一种程序,其使得用户能够如内容提供方所期望的那样观看视频图像。在根据本技术的一个方面的图像处理装置中,在给出指令以在用于观看由特定分发服务分发的内容的应用程序的执行期间执行图像质量调整的情况下,显示图像质量调整菜单,该图像质量调整菜单包括与针对特定分发服务的图像质量调整模式的设置相关的显示。本技术可以应用于支持视频图像内容分发服务的电视接收机。(The present technology relates to an image processing apparatus, a display control method, and a program that enable a user to view video images as desired by a content provider. In the image processing apparatus according to an aspect of the present technology, in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by a specific distribution service, an image quality adjustment menu including a display related to setting of an image quality adjustment mode for the specific distribution service is displayed. The present technology can be applied to a television receiver supporting a video image content distribution service.)

1. An image processing apparatus comprising:

a display control unit that, in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by a specific distribution service, controls to display an image quality adjustment menu including a display related to setting of an image quality adjustment mode for the specific distribution service.

2. The image processing apparatus according to claim 1,

in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by another distribution service, the display control unit controls to display an image quality adjustment menu that does not include a display related to setting of the image quality adjustment mode.

3. The image processing apparatus according to claim 1,

the display control unit controls to display an image quality adjustment menu including a display for setting on of the image quality adjustment mode or off of the image quality adjustment mode.

4. The image processing apparatus according to claim 3, further comprising:

an image quality adjustment control unit that adjusts the image quality of the content distributed by the specific distribution service according to a preset image quality adjustment parameter in a case where the image quality adjustment mode is set to on.

5. The image processing apparatus according to claim 3,

in a case where the image quality adjustment mode is set to on, the display control unit causes display for setting another image quality adjustment mode to be displayed in an inoperable state.

6. The image processing apparatus according to claim 3,

in a case where the image quality adjustment mode is set to on, the display control unit causes display for setting each item related to image quality adjustment to be displayed in an operable state.

7. The image processing apparatus according to claim 4,

the image quality adjustment parameter is set to a parameter common to all contents distributed by a specific distribution service.

8. The image processing apparatus according to claim 4,

in the case where the image quality adjustment parameter is set for each content distributed by a specific distribution service,

the image quality adjustment control unit acquires an image quality adjustment parameter of a content to be reproduced from a server and adjusts the image quality of the content.

9. The image processing apparatus according to claim 4,

there are a plurality of specific distribution services, and

the image quality adjustment control unit adjusts the image quality of the content distributed by each specific distribution service according to the image quality adjustment parameter of each specific distribution service.

10. The image processing apparatus according to claim 9,

the image quality adjustment control unit adjusts the image quality of the content distributed by each specific distribution service according to the image quality adjustment parameter of each specific distribution service and according to the offset value.

11. The image processing apparatus according to claim 10,

the image quality adjustment control unit acquires an image quality adjustment parameter for each specific distribution service from a server that provides each specific distribution service, and acquires an offset value for each specific distribution service according to an operation by a user.

12. A display control method, wherein,

in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by a specific distribution service, the image processing apparatus controls to display an image quality adjustment menu including a display related to setting of an image quality adjustment mode for the specific distribution service.

13. A program for causing a computer to execute:

in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by a specific distribution service, control is performed to display an image quality adjustment menu including a display related to setting of an image quality adjustment mode for the specific distribution service.

Technical Field

The present technology relates to an image processing apparatus, a display control method, and a program. In particular, the present technology relates to an image processing apparatus, a display control method, and a program that enable a user to view video images as desired by a content provider.

Background

In recent years, distribution services of video image content such as movies and television programs have become widespread.

There is also a distribution service that distributes not only content containing Standard Dynamic Range (SDR) video images, but also content containing High Dynamic Range (HDR) video images with extended dynamic range.

CITATION LIST

Patent document

Patent document 1: japanese patent application publication No. 2010-124429.

Disclosure of Invention

Problems to be solved by the invention

In terms of content provision, it is preferable that the user views the video image with an image quality desired by the provider.

When the user himself adjusts the brightness using the image quality adjusting function of the television, a video image having an image quality different from that desired by the provider can be displayed.

The present technology has been proposed in view of such a situation, and an object is to enable a user to view a video image as desired by a content provider.

Solution to the problem

An image processing apparatus according to an aspect of the present technology includes: a display control unit that, in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by a specific distribution service, controls to display an image quality adjustment menu including a display related to setting of an image quality adjustment mode for the specific distribution service.

In one aspect of the present technology, in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by a specific distribution service, an image quality adjustment menu including a display related to setting of an image quality adjustment mode for the specific distribution service is displayed.

Drawings

Fig. 1 is a diagram showing a configuration example of a content distribution system;

FIG. 2 is a diagram showing an example of an application structure of a television;

fig. 3 is a diagram showing a display example of an image quality adjustment menu during program viewing;

fig. 4 is an enlarged view illustrating an image quality adjustment menu of fig. 3;

FIG. 5 is a diagram showing a display example of a selection menu in the picture mode;

FIG. 6 is a diagram showing another display example of an image quality adjustment menu;

fig. 7 is an enlarged view illustrating an image quality adjustment menu of fig. 6;

fig. 8 is an enlarged view illustrating an image quality adjustment menu of fig. 6;

fig. 9 is a diagram showing an example of switching display of an image quality adjustment menu;

fig. 10 is a block diagram showing an example of a hardware configuration of a television;

fig. 11 is a block diagram showing a functional configuration example of a television;

FIG. 12 is a flowchart for explaining an image quality adjustment process;

FIG. 13 is a flowchart for explaining another image quality adjustment process;

FIG. 14 is a diagram showing an example of an apparatus;

FIG. 15 is a diagram showing an example of providing an image quality adjustment parameter;

FIG. 16 is a diagram showing another example of providing an image quality adjustment parameter;

fig. 17 is a diagram showing a display example of an image quality adjustment menu;

FIG. 18 is an enlarged view showing an image quality adjustment menu;

fig. 19 is a diagram showing a display example when a partner offset is set;

FIG. 20 is an enlarged view showing an offset menu;

FIG. 21 is a diagram showing a display example of a screen of each distribution service;

fig. 22 is a diagram showing an example of management of image quality adjustment parameters;

fig. 23 is a block diagram showing a configuration example of a computer.

Detailed Description

Hereinafter, embodiments for implementing the present technology will be described. The description will be given in the following order.

1. Configuration of content distribution system

2. Display of image quality adjustment menu

3. Configuration and operation of television

4. Modified examples

5. Example of a situation where there are multiple specific distribution services

< configuration of content distribution System >

Fig. 1 is a diagram showing a configuration example of a content distribution system according to an embodiment of the present technology.

The content distribution system of fig. 1 is configured by connecting a television 1 and distribution servers 2-1 to 2-N via a network 3 (e.g., the internet). For operating the television 1, a remote control 4 is used. A command corresponding to a button pressed by the user is transmitted from the remote controller 4 to the television 1.

Between the television 1 and the distribution servers 2-1 to 2-N, communication via the network 3 is performed. The network 3 may be any form of wired network, wireless network, or combination of wired and wireless networks. Hereinafter, the distribution servers 2-1 to 2-N are appropriately referred to as the distribution servers 2 without being necessarily distinguished from each other.

The television 1 as an image processing apparatus receives television broadcasts, such as terrestrial digital broadcasts, satellite broadcasts, and cable broadcasts, which are broadcast by a broadcasting station (not shown). The program broadcasting of the broadcasting station is performed according to a predetermined schedule of each channel.

The television 1 displays a video image of a broadcast program on a display device and outputs sound from a speaker. For example, the display device of the television 1 is a display device having so-called 4K resolution (3840 × 2160) pixels and supporting HDR video image display.

Further, the television 1 has not only a function of receiving a program provided by broadcasting but also a function of receiving content provided via the network 3. The content is provided via the network 3, for example, by streaming. The content may also be provided by downloading.

In a case where a predetermined distribution service is selected by an operation using, for example, the remote controller 4, the television 1 controls a main screen displaying the distribution service on the display device. In the television 1, a plurality of distribution services individually provided by different commercial providers can be used.

The television 1 receives and reproduces the content transmitted from the distribution server 2. The television 1 displays a video image obtained by reproducing video data included in content on a display device, and outputs sound obtained by reproducing audio data from a speaker.

The distribution server 2 is a server that provides a distribution service. The distribution server 2-1 is a server that provides the distribution service a, and the distribution server 2-2 is a server that provides the distribution service B. The distribution servers 2-N are servers providing a distribution service N.

One distribution service may be provided by one distribution server 2, or may be provided by a plurality of distribution servers 2. It is also possible to allow a plurality of distribution services to be provided by one distribution server 2.

In this way, the user of the television 1 can select a predetermined distribution service from a plurality of distribution services and view content provided by the selected distribution service. The television 1 is a device equipped with a general-purpose Operating System (OS), and is installed with an application program for using a personal distribution service.

Fig. 2 is a diagram showing an example of an application structure of the television 1.

The television 1 is equipped with a television OS 11. Various application programs running on the television OS 11 are installed on the television 1. The example of FIG. 2 shows a television viewing application 12-1, a search application 12-2, an image quality adjustment application 12-3, and content viewing applications 12-A through 12-N.

The television viewing application 12-1 is an application that manages viewing of broadcast programs. While the television viewing application 12-1 is running, the user can operate the remote controller 4 to select a predetermined channel and view a program broadcast on the selected channel.

The search application 12-2 is an application for searching information on the network based on a keyword input by the user by operating the remote controller 4 or by voice.

The image quality adjustment application 12-3 is an application that manages image quality adjustment of the display device of the television 1. In the case where the user instructs execution of image quality adjustment, the image quality adjustment application 12-3 controls to display an image quality adjustment menu, which is a Graphical User Interface (GUI) for setting various items relating to image quality.

The image quality adjustment application 12-3 sets image quality adjustment parameters for various items, such as picture mode, brightness, and hue, according to the user's operation on the image quality adjustment menu. The image quality adjustment function and the image quality adjustment menu display function of the image quality adjustment application 12-3 may be provided as functions of the television OS 11.

The content viewing application 12-a is an application for using the distribution service a provided by the distribution server 2-1.

For example, when the content viewing application 12-a starts, the main screen of the distribution service a is displayed on the television 1 based on the information transmitted from the distribution server 2-1. The home screen displays information about visual contents, such as titles and thumbnails, which the user can see and select desired contents. When the user selects a predetermined content, the distribution of the content is started.

The content viewing application 12-B is an application for using the distribution service B provided by the distribution server 2-2.

Although not shown in fig. 2, a dedicated application for using other distribution services is separately installed on the television 1.

Further, the television 1 is also installed with applications such as a video application for viewing recorded programs recorded on an external recording medium such as a Hard Disk Drive (HDD) and a web browser for displaying web pages.

For example, the television viewing application 12-1, the search application 12-2, and the image quality adjusting application 12-3 are software prepared by a manufacturer who performs manufacturing, selling, and the like of the television 1. The content viewing applications 12-a through 12-N are software prepared by commercial providers of the respective distribution services.

< display of image quality adjustment Menu >

Here, a display example of the image quality adjustment menu will be described. The image quality adjustment menu is displayed differently between a case of viewing the content of a specific distribution service and other cases.

Hereinafter, it is assumed that the distribution service a provided by the distribution server 2-1 is a specific distribution service.

Examples during program viewing

Fig. 3 is a diagram showing a display example of an image quality adjustment menu during program viewing.

The soccer broadcast program shown in the upper part of fig. 3 is, for example, a recorded program. That is, the screen shown in the upper part of fig. 3 is a screen when a video application for viewing a recorded program is running. The recorded program selected by the user is reproduced by the video application and the video image is displayed on the display device.

In the case where an instruction is given to perform image quality adjustment while the screen shown in the upper part of fig. 3 is displayed, an image quality adjustment menu 51 is displayed at the right edge of the screen as indicated by the tip of the arrow. The video image of the recorded program continues to be displayed in an area other than the display area of the image quality adjustment menu 51 in the entire screen.

Fig. 4 is an enlarged view illustrating the image quality adjustment menu 51 of fig. 3.

As shown in fig. 4, in the image quality adjustment menu 51, the respective items related to the image quality adjustment are vertically displayed side by side. The broken line indicating the boundary of the display area of each item is not a line actually displayed on the image quality adjustment menu 51.

In an area 61 at the upper part of the image quality adjustment menu 51, a character "picture adjustment" indicating the image quality adjustment menu is displayed, and an "application (video)" is displayed below. "application (video)" means that the running application is a video application.

In this way, information indicating the application program being run is displayed in the area 61. For example, in a case where the television viewing application 12-1 is running and is viewing a broadcast program, "application (tuner)" indicating that the television viewing application 12-1 is running is displayed.

Regions 62 to 67 are formed in this order below region 61. Items related to image quality adjustment are assigned to the areas 62 to 67. The user can operate the remote controller 4 to select a predetermined item to change the setting of the selected item.

The area 62 is an area for setting a picture mode. The picture mode is an overall image quality adjustment mode. In the example of fig. 4, the "standard" is set.

For example, in the case where the item "picture mode" is selected, as shown in fig. 5, a selection menu 51A of the picture mode is displayed instead of the image quality adjustment menu 51. In the example of fig. 5, "vivid", "standard", and "movie" are displayed as the setting values of the picture mode. The user operates the remote controller 4 and selects a predetermined set value from the set values displayed on the selection menu 51A.

Returning to the description of fig. 4, the area 63 is an area for setting the auto picture mode. The auto picture mode is a function of automatically switching image quality according to the content being viewed. In the area 63, a switch 63A indicating on/off of the auto picture mode is displayed. The user can select the "auto picture mode" item to change the on/off setting of the auto picture mode. Here, on/off of the auto picture mode is displayed in the area 63, but the "auto picture mode" may be displayed and selected together with "live", "standard", and "movie" as a setting value of the picture mode.

The region 64 is a region for setting luminance. Luminance represents luminosity (brightness). In the example of fig. 4, the set value "max" is set. The user may select the "brightness" item to change the brightness setting.

The region 65 is a region for setting color. The color represents a hue. In the example of fig. 4, the set value is "60". The user may select the item "color" to change the hue setting.

The region 66 is a region for disposing the light sensor. The optical sensor has a function of automatically adjusting the screen brightness according to the ambient brightness. In the area 66, a switch 66A indicating on/off of the photosensor is displayed.

The user may select the item "light sensor" to change the on/off setting of the light sensor function. In the example shown in fig. 4, the light sensor function is on, and the switch 66A is displayed in a bright color. The shaded indication displays the switch 66A in a bright color.

The region 67 is a region for detailed setting. The user can select the detailed setting item to change a plurality of detailed settings related to the image quality.

When viewing a recorded program or a broadcast program, the image quality is adjusted using the image quality adjustment menu 51 as described above.

When viewing content provided by a distribution service other than distribution service a, which is a specific distribution service, the image quality is also adjusted by using a similar image quality adjustment menu 51.

For example, in a case where an instruction to perform image quality adjustment is given while viewing content provided by the distribution service B, for example, a "service B application" indicating that the running application is the content viewing application 12-B is displayed in the area 61. Further, in a case where an instruction to perform image quality adjustment is given while viewing the content provided by the distribution service N, for example, a "service N application" indicating that the running application is the content viewing application 12-N is displayed in the area 61.

Examples of content viewing periods for particular distribution services

Fig. 6 is a diagram showing a display example of an image quality adjustment menu during content viewing of the distribution service a.

The content shown in the upper part of fig. 6 is, for example, a movie provided by the distribution service a. The content selected by the user is reproduced by the content viewing application 12-a, and a video image of the content is displayed on the display device.

In the case where an instruction to perform image quality adjustment is given while the screen shown in the upper part of fig. 6 is displayed, an image quality adjustment menu 51 is displayed at the right edge of the screen as indicated by the tip of the arrow. The video image of the content is continuously displayed in an area other than the display area of the image quality adjustment menu 51 in the entire screen.

Fig. 7 is an enlarged view illustrating the image quality adjustment menu 51 of fig. 6.

In the display of the image quality adjustment menu 51 shown in fig. 7, the same display as that described with reference to fig. 4 is denoted by the same reference numeral. Redundant description will be omitted as appropriate.

As shown in fig. 7, a "service a application" indicating that the running application is the content viewing application 12-a is displayed in the area 61.

In the image quality adjustment menu 51 of fig. 7, an area 63 is an area for setting the service a calibration mode. That is, the area 63 becomes an area of the service a calibration mode, not the auto picture mode. In the area 63, a switch 63B indicating on/off of the service a calibration mode is displayed.

The service a calibration mode is an image quality adjustment mode of the distribution service a.

In the case where the service a calibration mode is on, image quality adjustment of the content of the distribution service a is performed in accordance with the image quality adjustment parameter set for the distribution service a. For example, the image quality adjustment of the service a calibration mode is performed by using an image quality adjustment parameter common to all contents distributed by the distribution service a.

The image quality adjustment parameter of the distribution service a is preset and managed by the content viewing application 12-a. The image quality adjustment parameter of the distribution service a may be acquired from the distribution server 2-1 at the time when the service a calibration mode is set to on.

However, in the case where the service a calibration mode is off, image quality adjustment of the content of the distribution service a is performed in accordance with the image quality adjustment parameter set by the user using the display of the other area including the picture mode. In addition to image quality adjustment of the program and image quality adjustment of the content of distribution service a other than distribution service a, the picture mode can also be used for image quality adjustment of the content of distribution service a with the service a calibration mode off.

In the example shown in fig. 7, the service a calibration mode is set to off. For example, the default setting for service a calibration mode is off.

The items in the other regions are the same as those described with reference to fig. 4.

In the example of fig. 7, the luminance of the region 64 is set to "35", and the color of the region 65 is set to "50". In addition, the arrangement of the light sensors in the area 66 is off.

Fig. 8 is a diagram showing a display example of the image quality adjustment menu 51.

With service a calibration mode set to on, area 62 is displayed in gray to indicate an inoperable state. That is, the setting of the picture mode is prohibited from being changed. As the image quality adjustment mode, the setting of the service a calibration mode is prioritized over the setting of the picture mode.

In the example of fig. 8, the switch 63B in the area 63 is turned on, and the switch 63B is displayed in a highlighted color.

Fig. 9 is a diagram showing a display example of the image quality adjustment menu 51 in the case where the service a calibration mode has been set to on.

In case the service a calibration mode has been set on, the picture mode is displayed in grey as shown in the upper part of fig. 9. In this state, in a case where the user operates the remote controller 4 to select the region 62 of the picture mode, a message 91 is displayed, notifying that the change of the picture mode is prohibited, as indicated by the tip of the arrow.

In the case of changing the picture mode, the user switches the setting of the service a calibration mode to off, and then changes the picture mode.

Returning to the description of fig. 8, the luminance of the region 64 is set to "40", and the color of the region 65 is set to "70". These settings of brightness and color are based on the settings of the image quality adjustment parameters of the distribution service a. Other items included in the detailed settings are also appropriately set based on the image quality adjustment parameter of the distribution service a.

Even in the case where the service a calibration mode has been set to on, items other than the picture mode are displayed in an operable state. The user can change the setting of items other than the picture mode.

In this way, the television 1 is provided with the service a calibration mode, which is an image quality adjustment mode for distributing the service a.

The image quality adjustment parameter of the service a calibration mode is, for example, a parameter prepared by a commercial provider who distributes the service a. As for the content of the distribution service a, image quality adjustment intended by the commercial provider of the distribution service a is applied.

The commercial provider of the distribution service a may allow the user to view video images having image quality desired by the commercial provider.

Further, as a user, a video image of content can be viewed at an image quality desired by a commercial provider.

The process in which the television 1 performs image quality adjustment as described above will be described later with reference to a flowchart.

< configuration and operation of television >

Configuration of a television

Fig. 10 is a block diagram showing an example of the hardware configuration of the television 1.

The tuner 101 receives a broadcast wave signal supplied from an antenna (not shown) or a broadcast wave signal supplied from a satellite broadcast or a cable set-top box, and extracts a signal of a channel selected by the user. The tuner 101 performs various processes such as a/D conversion and demodulation on the extracted signal, and outputs program data obtained by performing the various processes to the decoder 102.

The decoder 102 decodes a video stream included in the program data, and outputs data of each picture obtained by the decoding to the signal processing unit 103. Further, the decoder 102 decodes an audio stream included in the program data, and outputs sound data of the program to the signal processing unit 103.

In the case of reproducing content of a predetermined distribution service, the decoder 102 decodes a video stream and an audio stream of the content received by the communication unit 111 and supplied via the bus 106. The decoder 102 outputs data of each picture obtained by decoding a video stream of content and sound data obtained by decoding an audio stream to the signal processing unit 103.

The signal processing unit 103 performs image quality adjustment on each picture supplied from the decoder 102 according to control of the CPU 107. The signal processing unit 103 outputs the picture with the image quality adjusted to the display device 104, and controls to display a video image of a program or content.

Further, the signal processing unit 103 performs D/a conversion or the like on the sound data supplied from the decoder 102, synchronizes with the video image, and outputs the sound of the program or the content from the speaker 105.

The display device 104 is a display having 4K resolution pixels and supporting HDR video image display. The display device 104 includes a Liquid Crystal Display (LCD), an organic EL display, and the like.

A Central Processing Unit (CPU)107, a Read Only Memory (ROM)108, and a Random Access Memory (RAM)109 are connected to each other by a bus 106. The CPU 107 executes a program recorded in the ROM 108 or the recording unit 110 by using the RAM 109, and controls the entire television 1.

The recording unit 110 includes a recording medium such as a Hard Disk Drive (HDD) or a Solid State Drive (SSD). The recording unit 110 records various data, for example, program data, contents, EPG data, and programs.

The communication unit 111 is an interface of the network 3. The communication unit 111 communicates with the distribution server 2.

The operation I/F unit 112 receives a command transmitted from the remote controller 4, and outputs to the CPU 107 via the bus 106.

Fig. 11 is a block diagram showing a functional configuration example of the television 1.

As shown in fig. 11, in the television 1, a content reproduction control unit 121, an image quality adjustment control unit 122, and a menu display control unit 123 are implemented.

At least a part of the functional units shown in fig. 11 is realized by executing a predetermined program by the CPU 107 of fig. 10. For example, the content reproduction control unit 121 is realized by executing the content viewing application 12-a. The image quality adjustment control unit 122 and the menu display control unit 123 are realized by executing the image quality adjustment application 12-3.

The content reproduction control unit 121 communicates with the distribution server 2-1 by controlling the communication unit 111, and requests the distribution server 2-1 to transmit the content selected by the user. The content reproduction control unit 121 controls the decoder 102 to reproduce the content transmitted from the distribution server 2-1.

The image quality adjustment control unit 122 controls image quality adjustment of a program or content performed by the signal processing unit 103.

For example, in the case of reproducing the content of distribution service a as a specific distribution service, in the case where the service a calibration mode has been set to on, the image quality adjustment control unit 122 controls to perform image quality adjustment according to the image quality adjustment parameter of the distribution service a. The image quality adjustment parameter of the distribution service a includes, for example, a set of a plurality of parameters representing the set values of a plurality of items.

Further, when reproducing a program or when reproducing the content of a distribution service other than distribution service a, the image quality adjustment control unit 122 controls to perform image quality adjustment according to the image quality adjustment parameter set individually by the user.

In the case where an instruction to perform image quality adjustment is given, the menu display control unit 123 causes the display device 104 to display an image quality adjustment menu. Further, as described above, the menu display control unit 123 switches the display of the image quality adjustment menu according to the operation of the user.

Operation of a television

Here, with reference to the flowchart in fig. 12, the image quality adjustment process of the television 1 will be described.

For example, when the user instructs execution of image quality adjustment, the process of fig. 12 is started.

In step S1, the menu display control unit 123 determines whether the content of distribution service a as the specific distribution service is being viewed.

In the event that determination is made at step S1 that the content of the distribution service a is being viewed, at step S2, the menu display control unit 123 controls to display an image quality adjustment menu (fig. 7) including an item of the service a calibration mode, which is the image quality adjustment mode of the distribution service a.

In step S3, the menu display control unit 123 switches the display of the image quality adjustment menu as described above according to the operation of the user.

In step S4, the menu display control unit 123 determines whether to close the image quality adjustment menu. When the image quality adjustment menu is to be closed, the process returns to step S3, and the display of the image quality adjustment menu continues until a determination is made at step S4.

In the event that determination is made in step S4 that the image quality adjustment menu is to be closed, in step S5, the image quality adjustment control unit 122 controls image quality adjustment of the content of the distribution service a, and controls display of the video image after the image quality adjustment. For example, in the case where the service a calibration mode is set to on using the image quality adjustment menu, the image quality adjustment control unit 122 controls to perform image quality adjustment according to the image quality adjustment parameter of the distribution service a.

However, in the case where it is determined in step S1 that the content of the distribution service a is not viewed, in step S6, the menu display control unit 123 controls to display a normal image quality adjustment menu (fig. 4). The image quality adjustment menu displayed here does not include an item of the service a calibration mode.

In step S7, the menu display control unit 123 switches the display of the normal image quality adjustment menu according to the user' S operation.

In step S8, the menu display control unit 123 determines whether to close the normal image quality adjustment menu. When the normal image quality adjustment menu is to be closed, the process returns to step S7, and the display of the normal image quality adjustment menu continues until a determination is made in step S8.

In the case where it is determined in step S8 that the normal image quality adjustment menu is to be closed, in step S9, the image quality adjustment control unit 122 controls image quality adjustment of the program or content in accordance with the user' S setting, and performs control to display the image quality-adjusted video image.

After the image quality adjustment is performed in step S5 or step S9, the process ends.

Through the above-described processing, the commercial provider of the distribution service a can allow the user to view a video image having an image quality desired by the commercial provider. In addition, the user can view the video image of the content at an image quality desired by the commercial provider.

Note that the content distributed by the distribution service a may be content in which SDR video images are recorded, or may be content in which HDR video images are recorded. The maximum luminance of the SDR video image is 100 nits (100 cd/m)²) Whereas the maximum luminance of HDR video images exceeds 10000 nits.

In the case where the display device 104 of the television 1 is a display that supports HDR video image display as described above, the adjustment range is wide. Therefore, there is a possibility that the user performs image quality adjustment different from that expected by the commercial provider. It is considered that the preparation service a calibration mode (which is an image quality adjustment mode for distribution service a) is particularly effective when displaying content containing HDR video images.

< modified example >

Setting example of image quality adjustment parameter

It has been assumed that the image quality adjustment parameter used in the case where the service a calibration mode is set to on is an image quality adjustment parameter common to all contents distributed by the distribution service a. However, an image quality adjustment parameter may be prepared for each content. In this case, the image quality adjustment parameter is prepared by, for example, the creator of the content, and managed by the distribution server 2-1.

The image quality adjustment processing in the case where the image quality adjustment parameter is prepared for each content will be described with reference to the flowchart of fig. 13.

For example, when the service a calibration mode is set to on, the process of fig. 13 starts.

In step S21, the image quality adjustment control unit 122 communicates with the distribution server 2-1, which is a server of a specific distribution service, and acquires the image quality adjustment parameter of the content to be reproduced.

In step S22, the image quality adjustment control unit 122 causes the signal processing unit 103 to perform image quality adjustment of the content in accordance with the image quality adjustment parameter acquired from the distribution server 2-1.

Accordingly, the creator of the content distributed by the distribution service a can allow the user to view a video image having an image quality desired by the creator side.

The image quality adjustment parameter may be prepared for each type of content distributed by the distribution service a, or may be prepared for each model of television 1. Further, an image quality adjustment parameter may be prepared for each display performance of the display device 104 included in the television 1.

Example of the device

The image quality adjustment of the television 1 as described above may be performed on the reproduction apparatus 201 shown in a of fig. 14 or the mobile terminal 202 shown in B of fig. 14. The reproducing apparatus 201 is a device such as a set-top box or an apparatus supporting reproduction of a predetermined packaged medium.

For example, in a case where the service a calibration mode has been set to on, the reproduction apparatus 201 performs image quality adjustment of the content based on the image quality adjustment parameter of the distribution service a, and outputs the video image after the image quality adjustment to the television 1 for display.

Other examples

As the parameter of the specific distribution service, a parameter for image quality adjustment is prepared, but a parameter for sound quality adjustment of content sound may be prepared.

In the case where the service a calibration mode has been set to on, the television 1 will adjust the sound of the content based on the parameters of the distribution service a and output the sound after the sound quality adjustment.

< example of case with multiple specific distribution services >

The case where the specific distribution service is distribution service a has been described, but a plurality of distribution services may be prepared as the specific distribution service.

In this case, the user can use an image quality adjustment function similar to the service a calibration mode described above not only for viewing the distribution service a but also for viewing the contents of other distribution services such as the distribution service B and the distribution service C.

Fig. 15 is a diagram showing an example of providing an image quality adjustment parameter.

In the case where the content viewing application 12-a is running on the television 1, communication is performed between the content viewing application 12-a and the distribution server 2-1, and the distribution server 2-1 provides the content viewing application 12-a with the image quality adjustment parameter of the distribution service a, as indicated by an arrow # 1.

The image quality adjustment parameter may be provided at a time when the service a calibration mode is set to on as described above, or may be provided at any time, for example, at a time when content distribution is started.

In the case where the service a calibration mode has been set to on, image quality adjustment of the content of the distribution service a is performed based on the image quality adjustment parameter provided by the distribution server 2-1. The acquisition of the image quality adjustment parameter and the image quality adjustment based on the image quality adjustment parameter are performed by, for example, the image quality adjustment control unit 122.

Such provision of the image quality adjustment parameter is also performed by a distribution server that manages provision of other distribution services.

Fig. 16 is a diagram illustrating another example of providing an image quality adjustment parameter.

For example, in a case where the image quality adjustment mode has been prepared for the distribution service B, the image quality adjustment parameters to be used in the image quality adjustment mode of the distribution service B are provided by the distribution server 2-2 that manages the provision of the distribution service B.

That is, communication is performed between the content viewing application 12-B (fig. 2) running on the television 1 and the distribution server 2-2, and the distribution server 2-2 provides the image quality adjustment parameter of the distribution service B to the content viewing application 12-B as indicated by an arrow # 2.

The image quality adjustment parameter of the distribution service B is also provided at any time, for example, at a time when the image quality adjustment mode of the distribution service B is set to on, or at a time when content distribution is started.

In the case where the image quality adjustment mode of the distribution service B has been set to on, image quality adjustment of the content of the distribution service B is performed based on the image quality adjustment parameter provided by the distribution server 2-2.

In the case where the image quality adjustment modes of the plurality of distribution services are prepared in this way, the display of the image quality adjustment menu is different from that of the image quality adjustment menu 51 described with reference to fig. 8 and the like.

Concerning on-screen display

Fig. 17 is a diagram showing a display example of an image quality adjustment menu.

In a case where an instruction to perform image quality adjustment is given while viewing the content of the distribution service a, an image quality adjustment menu 301 is displayed at the right edge of the screen, as shown in the upper part of fig. 17. The video image of the content of the distribution service a is continuously displayed in an area other than the display area of the image quality adjustment menu 301 in the entire screen.

In the image quality adjustment menu 301, items similar to those of the above-described image quality adjustment menu 51 are vertically displayed side by side. Redundant description will be omitted as appropriate.

Fig. 18 is an enlarged view illustrating the image quality adjustment menu 301 of fig. 17.

The uppermost area 301A is an area in which information indicating the input type (input type) of the display device 104 is displayed. In the example of fig. 18, the input type is "partner application".

The "partner application" indicates that an application for using the distribution service is being executed, a dedicated image quality adjustment mode is prepared for the distribution service, and a video image acquired by the application is displayed on the display device 104.

The "partner" is a business provider of distribution service a, a business provider of distribution service B, or the like for which a dedicated image quality adjustment mode has been prepared. Hereinafter, the image quality adjustment mode dedicated to "partner" is appropriately referred to as "partner calibration mode".

Regions 311 to 316 below the region 301A are regions for user operation. Items related to image quality adjustment are assigned to the regions 311 to 316. The user can operate the remote controller 4 to select a predetermined item to change the setting of the selected item.

The region 311 is a region for setting a picture mode. In the example of fig. 18, "standard" is set to the picture mode.

The area 312 is an area for setting the auto picture mode.

The display of the region 311 and the region 312 is the same as the display of the region 62 and the region 63 described with reference to, for example, fig. 4, respectively.

The area 313 is an area for setting a partner calibration mode, which is an image quality adjustment mode dedicated to "partner". Since the content of the distribution service a is being viewed, the character "partner calibration mode for service a" is displayed in the area 313 of fig. 18. The "partner calibration mode for service a" is the same as the partner calibration mode for distribution service a, i.e., the service a calibration mode described above.

Note that in the example of fig. 18, the setting of the partner calibration mode is turned off. For example, the default setting for the partner calibration mode is off.

In the case where the user selects the area 313 by operating the remote controller 4, on/off of the partner calibration mode may be selected.

The region 314 is a region for setting the luminance as an image quality adjustment parameter. In the example of fig. 18, the setting value "35" is set.

The region 315 is a region for setting color as an image quality adjustment parameter. In the example of fig. 18, the set value "60" is set.

The display of region 314 and region 315 is the same as the display of region 64 and region 65, respectively, described with reference to, for example, fig. 8. In the case where the partner calibration mode is off, the user can freely set the image quality adjustment parameters of brightness and color.

The area 316 is an area for setting a partner offset. The partner offset is an offset used for image quality adjustment in the case where the partner calibration mode has been set to on. The image quality adjustment may be further adjusted by setting the offset value to the partner offset, with the image quality adjustment parameter set to the partner calibration mode.

That is, by setting the partner offset, the user can also view a video image having an image quality finely adjusted according to the user preference, instead of the original video image (the video image after image quality adjustment using the image quality adjustment parameter provided by the distribution service) as it is in the partner calibration mode.

As shown in fig. 18, in the case where the partner calibration mode has been set to off, the area 316 is displayed in gray. In this case, the setting of the partner offset is disabled.

In fig. 18, the fact that the area 316 is colored indicates that the area 316 is displayed in gray. The ungrayed-out regions 311 to 315 are regions operable by the user.

With such display of the image quality adjustment menu 301, the user can perform image quality adjustment of the content of the distribution service a.

Returning to the description in fig. 17, in the case where the partner calibration mode (partner calibration mode of the service a) is set to on, as indicated by the tip of the arrow #11, the video image of the content is switched to the video image after the image quality adjustment is made with the partner calibration mode. Image quality adjustment is performed on the content using parameters provided by the distribution service a as image quality adjustment parameters, for example, brightness and color. In the example of fig. 17, a setting value "60" as the brightness and a setting value "50" as the color are used as the image quality adjustment parameter of the partner calibration mode.

In the image quality adjustment menu 301, of the regions 311 to 316, only the region 313 of the partner calibration mode and the region 316 of the partner offset are operable, and the other regions are displayed in gray.

In the image quality adjustment menu 301 in the lower part of fig. 17, the setting of the partner calibration mode of the area 313 has been turned on. Further, the setting of the picture mode of the region 311 is "partner-calibrated", indicating that the partner-calibrated mode has priority.

In this state, in the case where the partner calibration mode is set to off, as indicated by the tip of the arrow #12, the video image of the content is switched to the video image that has not been subjected to the image quality adjustment of the partner calibration mode. The display of the image quality adjustment menu 301 will also return to the display of the off state before the partner calibration mode is set to on.

Fig. 19 is a diagram showing a display example when a partner offset is set.

As shown in the upper part of fig. 19, in the case where the partner calibration mode is on, when setting of partner offset in the bottom column of the image quality adjustment menu 301 is selected, an offset menu 302 is displayed instead of the image quality adjustment menu 301 as shown by the tip of an arrow # 13. An offset menu 302 is displayed for setting partner offsets.

Fig. 20 is an enlarged view showing the offset menu 302.

In the area 302A of the uppermost portion, a character "partner offset (service a)" is displayed indicating that the offset menu 302 is a menu for setting partner offsets.

Areas 331 and 332 below the area 302A are areas for user operation.

In the example of fig. 20, the area 331 is an area for setting an offset value of luminance. Further, the area 332 is an area for setting an offset value of a color.

The user can set the offset value of the luminance by selecting the area 331. In addition, the user can set the offset value of the color by selecting the area 332.

The setting of the offset value is performed by using an option of using a relative expression with respect to the standard, for example, selecting one of five levels, or selecting any level from +5/+ 3/-3/-5.

That is, the unit of the offset value is different from the unit of the adjustment parameter such as luminance and color. As the value of the offset value, an absolute numerical value, for example, values indicating brightness and color ("35" and "60" in fig. 18) is not used.

For example, in the case where "+ 5" is selected as the offset value of the luminance, a predetermined value corresponding to "+ 5" is added to "60", which is the luminance specified with the partner calibration mode, and the added value is used to adjust the luminance.

After the offset value is set, the display returns to the state of the upper part of fig. 19, in which the image quality adjustment menu 301 is displayed.

Note that in the example of fig. 19, it is assumed that there are two offset values that can be set using the offset menu 302: a luminance offset value and a color offset value. However, the number of items displayed in the offset menu 302 will be different for each partner calibration mode. For example, in the partner calibration mode of the distribution service B (partner calibration mode of the service B), it is also possible to set offset values of more types of image quality adjustment parameters.

Even when viewing the content of the distribution service B, various settings related to image quality adjustment, including the setting of the partner calibration mode, are made using a display similar to the above-described display.

Fig. 21 is a diagram showing a display example of a screen of each distribution service.

The display shown on the left side of fig. 21 shows the above-described screen display in the case where the content viewing application 12-a is running and is viewing the content of the distribution service a. The upper portion displays a display in the case where the partner calibration mode of the service a is off, and the middle portion displays a display in the case where the partner calibration mode of the service a is on. The lower display offset menu 302.

However, the display shown on the right side of fig. 21 shows a screen display in the case where the content viewing application 12-B is running and is viewing the content of the distribution service B. The upper portion displays a display in the case where the partner calibration mode of the service B is off, and the middle portion displays a display in the case where the partner calibration mode of the service B is on. The lower display offset menu 302.

As indicated by an arrow #21, the display of the input type of the image quality adjustment menu 301 is a "partner application" common to the case where the content viewing application 12-a is running and the case where the content viewing application 12-B is running.

As indicated by arrows #22 and #24, the display of the picture mode in the image quality adjustment menu 301 is common in the case where the content viewing application 12-a is running and in the case where the content viewing application 12-B is running. In the case where the partner calibration mode is off, a setting value, for example, "standard", is displayed to indicate the user's selection (arrow # 22). With the partner calibration mode on, "partner calibration" is displayed to indicate that the partner calibration mode has priority (arrow # 24).

As indicated by arrow #23, the on/off of the partner calibration mode may be set individually for each of the content viewing application 12-A and the content viewing application 12-B.

As indicated by arrow #25, the settings for the partner offset using the offset menu 302 may be maintained individually for each of the content viewing application 12-A and the content viewing application 12-B. The offset value of the partner offset set in the case where the partner calibration mode of the service a is on is used for image quality adjustment of the partner calibration mode of the service a. Further, the offset value of the partner offset set in the case where the partner calibration mode of the service B is on is used for image quality adjustment of the partner calibration mode of the service B.

As described above, the setting of the image quality adjustment is performed with a similar user interface for the case where the content viewing application 12-a is running and the case where the content viewing application 12-B is running.

Management of image quality adjustment parameters

Fig. 22 is a diagram illustrating an example of management of image quality adjustment parameters.

As shown in fig. 22, the image quality adjustment parameters in the partner calibration mode are stored and managed in the parameter storage area M1 as table information together with image quality adjustment parameters of other input types such as television and HDMI (registered trademark).

However, the offset value of the partner offset is stored and managed in the offset storage area M2, which is different from the parameter storage area M1 of each application program.

For example, the parameter storage area M1 is formed in the RAM 109 (fig. 10), and the RAM 109 is a volatile storage area. The offset storage area M2 is formed in the recording unit 110, and the recording unit 110 is a nonvolatile storage area. The parameter storage area M1 and the offset storage area M2 may be formed in the same nonvolatile memory cell (medium), for example.

By associating a plurality of types of image quality adjustment parameters for each input type, table information stored in the parameter storage area M1 is formed. In some image quality adjustment parameters, the same value is typically used for multiple input types. The image quality adjustment parameters typically used by the various input types cannot be overwritten from the content viewing application, such as the content viewing application 12-a and the content viewing application 12-B.

For example, the calibration mode area is a storage area allocated to the partner calibration mode in the parameter storage area M1, and is shared and used by a plurality of content viewing applications.

For example, when the content viewing application 12-a is started, the default image quality adjustment parameter is written once in the calibration mode area. The set of image quality adjustment parameters for the partner calibration mode of the service a obtained from the distribution server 2-1 is written in the calibration mode area in a form of overwriting the previously stored default image quality adjustment parameters.

In the case where the partner calibration mode of the service a is set to on, image quality adjustment is performed based on the image quality adjustment parameter of the partner calibration mode of the service a written at the time of startup and based on the offset value of the partner calibration mode of the service a stored in the offset storage area M2.

Similarly, when the content viewing application 12-B is started, the default image quality adjustment parameter is written once in the calibration mode area. The set of image quality adjustment parameters of the partner calibration mode of the service B obtained from the distribution server 2-2 is written in the calibration mode area in a form of overwriting the previously stored default image quality adjustment parameters.

In the case where the partner calibration mode of the service B is set to on, image quality adjustment is performed based on the image quality adjustment parameter of the partner calibration mode of the service B written at the time of startup and based on the offset value of the partner calibration mode of the service B stored in the offset storage area M2.

The service provider of each distribution service may set any kind of image quality adjustment parameter as the image quality adjustment parameter of the partner calibration mode. That is, the type of image quality adjustment parameter included in the image quality adjustment parameter set of the partner calibration mode may differ for each distribution service.

By allowing the image quality adjustment parameter to be written in an overlaid form after the default image quality adjustment parameter is written once, the default image quality adjustment parameter can be used for image quality adjustment parameters not included in the set.

Here, a case is considered in which the user can adjust the image quality adjustment parameters of the partner calibration mode such as brightness and color according to his/her preference, and the image quality adjustment parameters after the adjustment are written in the calibration mode area by the content viewing application. In this case, after the information in the calibration mode area is reset once, the setting contents of the user are also reset.

By storing the offset value of each distribution service in the offset storage area M2, which is a nonvolatile storage area, and performing image quality adjustment using the image quality adjustment parameter and the offset value written at the time of startup, image quality adjustment can be performed to reflect the setting content of the user.

The image quality adjustment parameters in the partner calibration mode include parameters that include multiple sub-parameters, e.g., Standard Dynamic Range (SDR)/High Dynamic Range (HDR)/dolby vision HDR. For example, in the case where the content starting to be reproduced is SDR content, the subparameter of SDR is used, and in the case of HDR content, HDR subparameter is used.

At the time of writing the image quality adjustment parameter into the parameter storage area M1, regardless of the type of content to be started to be reproduced, a plurality of sub-parameters, for example, SDR/HDR, are collectively acquired from the distribution server 2 and written into the parameter storage area M1. In the case where the content to start reproduction is SDR content, the HDR subparameter is a parameter prepared in advance for switching the genre.

Others

In the case where the partner offset is set by the user, a log of the display setting contents may be transmitted to the distribution server 2.

In this case, the offset value of the partner offset set in the case where the partner calibration mode of the service a is on is transmitted to the distribution server 2-1 by the content viewing application 12-a. Further, the offset value of the partner offset set in the case where the partner calibration mode of the service B is on is sent to the distribution server 2-2 by the content viewing application 12-B

Computer configuration example

The series of processes described above may be performed by hardware or software. In the case where a series of processes are executed by software, a program forming the software is installed from a program recording medium to a computer, a general-purpose personal computer, or the like included in dedicated hardware.

Fig. 23 is a block diagram showing a configuration example of hardware of a computer that executes the above-described series of processing according to a program.

A Central Processing Unit (CPU)1001, a Read Only Memory (ROM)1002, and a Random Access Memory (RAM)1003 are connected to each other by a bus 1004.

The bus 1004 is also connected to an input/output interface 1005. The input/output interface 1005 is connected to an input unit 1006 including a keyboard, a mouse, and the like, and an output unit 1007 including a display device, a speaker, and the like. Further, the input/output interface 1005 is connected to a storage unit 1008 including a hard disk, a nonvolatile memory, or the like, a communication unit 1009 including a network interface or the like, and a drive 1010 which drives a removable medium 1011.

In the computer configured as described above, for example, the above-described series of processing is executed by the CPU 1001 loading and executing a program recorded in the storage unit 1008 into the RAM 1003 via the input/output interface 1005 and the bus 1004.

The program executed by the CPU 1001 is provided for installation in the storage unit 1008, for example, by being recorded on a removable medium 1011 or via a wired or wireless transmission medium (e.g., a local area network, the internet, and digital broadcasting).

Note that the program executed by the computer may be a program that performs processing in time series according to the order described in this specification, or may be a program that performs processing in parallel or performs processing in a necessary time (for example, when a call is made).

In this specification, a system refers to a set of a plurality of components (devices, modules (parts), etc.), and it does not matter whether all the components are in the same housing. Therefore, both a plurality of devices accommodated in separate housings and connected via a network and a single device having a plurality of modules accommodated in one housing are systems.

The effects described in this specification are merely examples, are not limited thereto, and other effects may also be present.

The embodiments of the present technology are not limited to the above-described embodiments, and various modifications may be made without departing from the scope of the present technology.

For example, the present technology may have a cloud computing configuration in which one function is shared and co-processed by a plurality of devices via a network.

Further, each step described in the above-described flowcharts may be executed by one apparatus, and may also be shared and executed by a plurality of apparatuses.

Further, in the case where one step includes a plurality of processes, the plurality of processes included in one step may be executed by one apparatus, and may also be shared and executed by a plurality of apparatuses.

Combined example of configuration

The present technology may have the following configuration.

(1) An image processing apparatus comprising:

a display control unit that, in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by a specific distribution service, controls to display an image quality adjustment menu including a display related to setting of an image quality adjustment mode for the specific distribution service.

(2) The image processing apparatus according to the above (1),

in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by another distribution service, the display control unit controls to display an image quality adjustment menu that does not include a display related to setting of an image quality adjustment mode.

(3) The image processing apparatus according to the above (1) or (2), wherein,

the display control unit controls to display an image quality adjustment menu including a display for setting on of an image quality adjustment mode or off of the image quality adjustment mode.

(4) The image processing apparatus according to the above (3), further comprising:

an image quality adjustment control unit that adjusts the image quality of the content distributed by the specific distribution service according to a preset image quality adjustment parameter in a case where the image quality adjustment mode is set to on.

(5) The image processing apparatus according to the above (3) or (4), wherein,

in a case where the image quality adjustment mode is set to on, the display control unit causes display for setting another image quality adjustment mode to be displayed in an inoperable state.

(6) The image processing apparatus according to any one of the above (3) to (5),

in a case where the image quality adjustment mode is set to on, the display control unit causes display for setting each item related to image quality adjustment to be displayed in an operable state.

(7) The image processing apparatus according to any one of the above (4) to (6),

the image quality adjustment parameter is set to a parameter common to all contents distributed by a specific distribution service.

(8) The image processing apparatus according to any one of the above (4) to (6),

in the case where the image quality adjustment parameter is set for each content distributed by a specific distribution service,

the image quality adjustment control unit acquires an image quality adjustment parameter of a content to be reproduced from a server and adjusts the image quality of the content.

(9) The image processing apparatus according to the above (4), wherein,

there are a plurality of specific distribution services, and

the image quality adjustment control unit adjusts the image quality of the content distributed by each specific distribution service according to the image quality adjustment parameter of each specific distribution service.

(10) The image processing apparatus according to the above (9), wherein,

the image quality adjustment control unit adjusts the image quality of the content distributed by each specific distribution service according to the image quality adjustment parameter of each specific distribution service and according to the offset value.

(11) The image processing apparatus according to the above (10),

the image quality adjustment control unit acquires an image quality adjustment parameter for each specific distribution service from a server that provides each specific distribution service, and acquires an offset value for each specific distribution service according to an operation by a user.

(12) A display control method, wherein,

in a case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by a specific distribution service, the image processing apparatus controls to display an image quality adjustment menu including a display related to setting of an image quality adjustment mode for the specific distribution service.

(13) A program for causing a computer to execute:

in the case where an instruction is given to perform image quality adjustment during execution of an application program for viewing content distributed by a specific distribution service, control is performed to display an image quality adjustment menu including a display related to setting of an image quality adjustment mode for the specific distribution service.

List of reference numerals

1 television

2-1 to 2-N distribution server

11 television OS

12-1 television viewing application

12-2 search application

12-3 image quality adjustment application

12-A through 12-N content viewing application

121 content reproduction control unit

122 image quality adjustment control unit

123 menu display control unit.