JP2008187320A - Image display device, image display method and control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily facilitate countermeasures to the change of the type of content or ambient rays of light or the like, and to simplify adjustment. <P>SOLUTION: This image display device is configured to generate a plurality of picture data for original comparison by applying different picture quality adjustment parameters to input image data, and to generate picture data for comparison showing a picture for comparison by synthesizing a plurality of pictures to which different picture quality adjustment parameters have been applied on the basis of generated picture data for original comparison, and to display the picture for comparison on the basis of the generated picture data for comparison, and to select any picture from among a plurality of pictures to which the different picture quality adjustment parameters included in the picture for comparison have been applied, and to define the picture quality adjustment parameter applied to the selected picture as a set picture quality adjustment parameter, and to generate and display a picture quality adjustment picture by applying the set picture quality adjustment parameter to the input image. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an image display device, an image display method, and a control program, and more particularly, to an image display device, an image display method, and a control program suitable for a user to perform desired image quality adjustment.

Video display devices that display video signals such as TV broadcasts and DVDs have an image quality adjustment function consisting of adjustment items such as brightness, contrast, color density, hue, sharpness, and color temperature that can be adjusted by the user. Although it is possible to individually adjust, modes (presets) such as dynamic, standard, and theater are usually prepared as preset values set in advance.
For example, in the dynamic mode, the contrast and the color density are emphasized so that the television program can be easily viewed in a bright place such as a living room during the day. In theater mode, the contrast and color density are conservative, and the brightness is set so that the black level of the video signal can be distinguished, making it easy to view movie content in dimly lit locations. Is done.
In other words, the optimum adjustment varies depending on the type of content, the brightness of the viewing environment, and the preference of each user, so that the user arbitrarily selects a preset mode.

If you want to reflect the preferences of each user, you can adjust the parameters such as contrast, color depth, and brightness individually and store them as a user preset mode. I was trying to add it.
By the way, when selecting a parameter group corresponding to these preset modes or individual parameters, since only one screen can be displayed at a time, it is necessary to make a selection by trial and error, and time is required for setting the optimum adjustment. It was hanging.
As a means for solving this, the technique described in Patent Document 1 displays two screens of a reference screen (before adjustment) and an adjustment screen on the display screen at the same time, and adjusts the adjustment screen while comparing with the reference screen. Is described.

According to the technique described in Patent Document 1, it is easy to determine which of the reference screen and the adjustment screen has a better image quality.
In addition, the technique described in Patent Document 2 is used to suppress a change in image quality when a display target image is switched due to a difference in image quality depending on a broadcast type (broadcast channel) or an input medium. It is proposed to store image quality adjustment parameters for each type or input medium. It also describes that displaying a multi-screen on the display screen and copying the image quality adjustment parameter does not require time for image quality adjustment and makes it easy to understand the difference in image quality.
JP 2002-218350 A JP 2006-157222 A

Although the technique described in Patent Document 1 is easy to compare the reference screen and the adjustment screen, it is difficult to determine whether or not the setting state is more optimal, and the comparison between the reference screen and the adjustment screen is repeated. There was a problem that it took a long time to make adjustments.
Furthermore, it is necessary to adjust each time the content type or ambient light changes, which is not practical.
Further, the technique described in Patent Document 2 has a configuration in which an image quality adjustment parameter is stored for each type of broadcast or each input medium, and thus there is a problem that it cannot cope with changes in content type, ambient light, and the like. .
SUMMARY OF THE INVENTION An object of the present invention is to provide an image display device, an image display method, and a control program that can easily cope with changes in content type, ambient light, and the like, and that can easily adjust image quality.

  In order to solve the above-described problem, a first aspect of the present invention is an image display device that displays an image by applying a set image quality adjustment parameter to input image data, wherein the image data has a different image quality. An image quality adjustment unit that generates a plurality of original comparison screen data to which adjustment parameters are applied, and a plurality of images to which different image quality adjustment parameters are applied based on the original comparison screen data generated by the image quality adjustment unit A comparison screen generation unit that generates comparison screen data representing a comparison screen, a display unit that displays the comparison screen based on the comparison screen data generated by the comparison screen generation unit, and the comparison screen A selection unit configured to select one of a plurality of included images having different image quality adjustment parameters applied to each other; and the image applied to the selected image. It is characterized in an adjustment parameter that and a parameter setting unit to the set image quality adjustment parameters.

According to the above configuration, the image quality adjustment unit generates a plurality of original comparison screen data in which different image quality adjustment parameters are applied to the image data.
The comparison screen generation unit generates comparison screen data representing a comparison screen obtained by combining a plurality of images to which different image quality adjustment parameters are applied based on the original comparison screen data generated by the image quality adjustment unit. To do.
Thus, the display unit displays the comparison screen based on the comparison screen data generated by the comparison screen generation unit.
The selection unit causes any image to be selected from among a plurality of images included in the comparison screen and having different image quality adjustment parameters applied to each other.

As a result, the parameter setting unit sets the image quality adjustment parameter applied to the selected image as the set image quality adjustment parameter.
An image quality adjustment screen is displayed based on the image quality adjustment screen data after applying the parameters.
Therefore, the user can set a desired image quality adjustment parameter as a set image quality adjustment parameter simply by selecting a desired image with reference to the comparison screen, and can easily cope with changes in content type, ambient light, and the like. At the same time, adjustment becomes easy.

Further, the second form is the image display device of the first form, wherein the image quality adjustment unit is configured to store the input image data in the input image storage unit and the input image data stored in the input image storage unit. An original comparison screen data generation unit that generates a plurality of the original comparison screen data with different image quality adjustment parameters applied to each other, and the comparison screen generation unit is generated by the original comparison screen data generation unit The comparison screen data is generated based on the plurality of original comparison screen data.
According to the above configuration,
The input image storage unit of the image quality adjustment unit stores input image data, and the original comparison screen data generation unit varies the image quality adjustment parameters applied to the input image data stored in the input image storage unit. A plurality of original comparison screen data is generated.
Accordingly, the comparison screen generation unit generates comparison screen data based on the plurality of original comparison screen data generated by the original comparison screen data generation unit.
Therefore, it is possible to easily generate a comparison screen.

The third form is an image display device according to the second form, wherein the comparison screen generation unit reduces the image represented by the original comparison screen data and generates reduced image data; and the image reduction A plurality of reduced image storage units that respectively store the plurality of reduced image data generated by the unit, and an image combining unit that combines the images represented by the plurality of reduced image data to generate the comparison screen data. It is characterized by that.
According to the above configuration, the image reduction unit of the comparison screen generation unit reduces the image represented by the original comparison screen data and generates reduced image data.
The plurality of reduced image storage units respectively store a plurality of reduced image data generated by the image reduction unit.
Thus, the image composition unit synthesizes the images represented by the plurality of reduced image data to generate the comparison screen data.
Therefore, it is possible to easily generate a comparison screen with a simple configuration.

According to a fourth aspect, in the image display device according to the first aspect, the image quality adjustment unit generates the image quality adjustment image data by applying the set image quality adjustment parameter to the input image data. Different image quality adjustment parameters to be applied to reduced input image data represented by an image obtained by reducing the image represented by the input image data and the input image data, each having a plurality of second image quality adjustment units for generating the original comparison screen data. The comparison screen generation unit generates the comparison screen data based on a plurality of original comparison screen data respectively output from the plurality of second image quality adjustment units.
According to the above configuration,
The first image quality adjustment unit of the image quality adjustment unit applies the set image quality adjustment parameter to the input image data to generate the image quality adjustment image data.
On the other hand, the plurality of second image quality adjustment units have different image quality adjustment parameters applied to the reduced input image data represented by the reduced image of the image represented by the input image data, and each generates original comparison screen data.
Accordingly, the comparison screen generation unit generates comparison screen data based on the plurality of original comparison screen data respectively output from the plurality of second image quality adjustment units.
Therefore, it is possible to easily generate a comparison screen with a simple configuration.

Further, a fifth aspect is the image display device according to the fourth aspect, wherein the comparison screen generation unit generates an image reduction unit that generates reduced input image data corresponding to an image obtained by reducing the image represented by the input image data, The image distribution unit that distributes the reduced input image data to the plurality of second image quality adjustment units, and the images represented by the plurality of original comparison screen data respectively output from the plurality of second image quality adjustment units, And an image composition unit for generating screen data for use.
According to the above configuration, the image reduction unit of the comparison screen generation unit generates reduced input image data corresponding to an image obtained by reducing the image represented by the input image data.
Thus, the image distribution unit distributes the reduced input image data to the plurality of second image quality adjustment units.
As a result, the image composition unit synthesizes the images represented by the plurality of original comparison screen data output from the plurality of second image quality adjustment units, respectively, and generates comparison screen data.
Therefore, it is possible to easily and quickly generate a comparison screen with a simple configuration.

The sixth embodiment is characterized in that one or a plurality of preset image quality adjustment parameters are applied as image quality adjustment parameters in the image display devices of the first to fifth embodiments.
According to the above configuration, it is easier to generate the comparison screen and the operability is improved.

Further, the seventh aspect is the image display device according to any one of the first aspect to the sixth aspect, wherein the image quality adjustment parameter is at least one of brightness, contrast, color density, hue, sharpness, and color temperature. It is characterized by including either.
According to the above configuration, the comparison screen can be generated under various conditions.

The eighth aspect is an image display method for displaying an image by applying a set image quality adjustment parameter to input image data, for original comparison in which different image quality adjustment parameters are applied to the image data. An image quality adjustment process for generating a plurality of screen data, and a comparison screen representing a comparison screen obtained by combining a plurality of images to which different image quality adjustment parameters are applied based on the original comparison screen data generated by the image quality adjustment process A comparison screen generation process for generating data, a display process for displaying the comparison screen based on the comparison screen data generated in the comparison screen generation process, and different image quality adjustment parameters included in the comparison screen A selection process for selecting one of the plurality of images to which the image is applied, and the image quality adjustment parameter applied to the selected image. Is characterized in that the chromatography data with a parameter setting step of said set image quality adjustment parameters.
Therefore, the user can set a desired image quality adjustment parameter as a set image quality adjustment parameter simply by selecting a desired image with reference to the comparison screen, and can easily cope with changes in content type, ambient light, and the like. At the same time, adjustment becomes easy.

The ninth form is a control program for controlling an image display device that has a display unit and displays an image by applying a set image quality adjustment parameter to input image data, A comparison screen in which a plurality of original comparison screen data to which different image quality adjustment parameters are applied is generated for image data, and a plurality of images to which different image quality adjustment parameters are applied is synthesized based on the generated original comparison screen data. And a plurality of images to which different image quality adjustment parameters are applied, which are included in the comparison screen, are displayed on the display unit based on the generated comparison screen data. The image quality adjustment parameter applied to the selected image is selected as the set image quality adjustment parameter. To, it is characterized in that.
Therefore, the user can set a desired image quality adjustment parameter as a set image quality adjustment parameter simply by selecting a desired image with reference to the comparison screen, and can easily cope with changes in content type, ambient light, and the like. At the same time, adjustment becomes easy.
In this case, the control program may be recorded on a computer-readable recording medium.

Next, preferred embodiments of the present invention will be described with reference to the drawings.
Next, preferred embodiments of the present invention will be described with reference to the drawings.
[1] First Embodiment FIG. 1 is a schematic configuration block diagram of an image display apparatus according to a first embodiment.
The image display device 10 is configured as a personal computer, and includes an image display device main body 11 that performs image processing, an image input device 12 that performs various image inputs, and an input device 13 such as a keyboard and a mouse that perform various operations. And a display device 14 such as a liquid crystal display for performing various displays, and an external storage device 15 such as a hard disk device for storing various data.
The image display device main body 11 includes a microprocessor unit (MPU) 21 that controls the entire image display device main body 11, a ROM 22 that stores various data including a display control program, and a RAM 23 that temporarily stores various data. A communication interface unit 24 that performs an interface operation with an external communication network such as a LAN or the Internet.

FIG. 2 is a functional block diagram of the image display apparatus.
The image display apparatus 10 includes a first frame memory 32 that stores the first image data DG1 input from the image input terminal 31 in units of frames, and the first image data DG1 or the first frame memory input from the image input terminal 31. The first switching unit 33 that exclusively outputs one of the second image data DG2 that is the image signal output from the 32 based on the first selection instruction signal Ss1, and the image that is output from the first switching unit 33. An image quality adjustment unit 34 that applies image quality adjustment parameters to the signal (first image data DG1 or second image data DG2) based on the parameter adjustment instruction data Dp, and outputs the image quality adjustment image data DGC; A screen reduction unit 35 that reduces the screen size of an image corresponding to the image data DGC and outputs reduced image data DC; and a screen reduction unit Four second frame memories 36A to 36D that store the reduced image data DC output by 5 in units of frames, and the first reduced image data DC1 to fourth reduced images output from the four second frame memories 36A to 36D. A synthesizer 37 that synthesizes data DC4 (= corresponding to original comparison screen data) and outputs synthesized comparison image data DCC (= corresponding to comparison screen data); The operation unit 38 that outputs the signal Ss1 and the second selection instruction signal Ss2, the parameter adjustment unit 39 that outputs the parameter adjustment instruction data Dp based on the operation state of the operation unit 38, and 4 based on the operation state of the operation unit 38. Based on the memory setting unit 40 that controls the second frame memories 36A to 36D and the second selection instruction signal Ss2 output from the operation unit 38, the image is displayed. A second switching unit 41 that exclusively outputs either the image quality adjusted image data DGC output by the adjusting unit 34 or the synthesized comparison image data DCC output by the synthesizing unit 37, and the image quality adjusted image output by the second switching unit 41. And a display unit 42 that performs display based on the data DGC or the composite comparison image data DCC.

FIG. 3 is a diagram illustrating an example of preset values of parameters for image quality adjustment.
In the present embodiment, as shown in FIG. 3, the dynamic mode M1, the standard mode M2, the theater mode M3, the first user preset mode M4, the second user preset mode M5, and the third user preset that are preset at the time of shipment from the factory. There are seven preset modes, mode M6 and fourth user preset mode M7.
In each of the preset modes M1 to M7, six parameters of a brightness parameter PM1, a contrast parameter PM2, a color density parameter PM3, a hue parameter PM4, a sharpness parameter PM5, and a color temperature parameter PM6 are set.
For each parameter PM1 to PM5, for example, the setting range is divided into 10 stages, and values of 1 (minimum value) to 10 (maximum value) can be set. For the color temperature parameter PM6, a value corresponding to a predetermined color temperature can be set.

  More specifically, in the dynamic mode M1, the brightness parameter PM1 = 9, the contrast parameter PM2 = 10, the color density parameter PM3 = 8, the hue parameter PM4 = 5, the sharpness parameter PM5 = 9, and the color temperature parameter PM6. Is set to 11000 [° C.], and the brightness, contrast, color density, and sharpness are high in pale tone as a whole. In the second user preset mode M5, the brightness parameter PM1 = 7, the contrast parameter PM2 = 6, the color density parameter PM3 = 5, the hue parameter PM4 = 3, the sharpness parameter PM5 = 6, and the color temperature parameter PM6 = It is set to 4800 [° C.], and the brightness is slightly high as a whole with a reddish color tone, indicating that the contrast, color density and sharpness are standard.

FIG. 4 is a process flowchart of the first embodiment.
In the following description, it is assumed that a maximum of four comparison screens are displayed simultaneously on the comparison screen for screen adjustment, and the preset mode used for displaying the comparison screen is instructed by the user in advance. To do.
FIG. 5 is an explanatory diagram of an example of the first image data.
The MPU 21 stores the first image data DG1 input from the image input terminal 31 and corresponding to the image G1 as shown in FIG. 5 in the first frame memory 32 in units of frames (step S1).
In parallel with this, the MPU 21 functions as the first switching unit 33 when the display screen for comparison is instructed by the user's operation of the operation unit 18 and the first selection instruction signal Ss1 is input. The second image data DG2, which is an image signal output from the memory 32, is output to the image quality adjustment unit 34.

Thereby, the image quality adjustment unit 34 applies the preset value A of the first image quality adjustment parameter to the second image data DG2 output from the first switching unit 33 based on the parameter adjustment instruction data Dp, for example, dynamic Six parameters of mode M1 brightness parameter PM1, contrast parameter PM2, color density parameter PM3, hue parameter PM4, sharpness parameter PM5 and color temperature parameter PM6 are applied (step S3), and the screen is displayed as image quality adjustment image data DGC. The data is output to the reduction unit 35.
The screen reduction unit 35 reduces the screen size of the image corresponding to the image quality adjustment image data DGC and outputs reduced image data DC. In parallel with the output of the reduced image data DC, the memory setting unit 20 reduces the reduced image data DC. Since the storage destination of the data DC is set in the second frame memory 36A, the image quality adjustment image data DGC obtained by applying the preset value A of the image quality adjustment parameter is written and stored in the second frame memory 36A. (Step S4).

When the writing of the image quality adjustment image data DGC obtained by applying the preset value A of the image quality adjustment parameter to the second frame memory 36A is completed, the image quality adjustment unit 34 is output from the first switching unit 33. For the second image data DG2, this time, based on the parameter adjustment instruction data Dp, a preset value B of the second image quality adjustment parameter, for example, the brightness parameter PM1, the contrast parameter PM2, and the color density of the theater mode M3. The six parameters of the height parameter PM3, the hue parameter PM4, the sharpness parameter PM5, and the color temperature parameter PM6 are applied (step S5), and are output to the screen reduction unit 35 as image quality adjustment image data DGC.
The screen reduction unit 35 reduces the screen size of the image corresponding to the image quality adjustment image data DGC and outputs reduced image data DC. In parallel with the output of the reduced image data DC, the memory setting unit 20 reduces the reduced image data DC. Since the storage destination of the data DC is set in the second frame memory 36B, the image quality adjustment image data DGC obtained by applying the preset value B of the image quality adjustment parameter is written and stored in the second frame memory 36B. (Step S6).

When the writing of the image quality adjustment image data DGC obtained by applying the preset value B of the image quality adjustment parameter to the second frame memory 36B is completed, the image quality adjustment unit 34 is output from the first switching unit 33. For the second image data DG2, this time, based on the parameter adjustment instruction data Dp, the preset value C of the third image quality adjustment parameter, for example, the brightness parameter PM1, the contrast parameter PM2, and the like in the second user preset mode M5, Six parameters of the color density parameter PM3, the hue parameter PM4, the sharpness parameter PM5, and the color temperature parameter PM6 are applied (step S7), and are output to the screen reduction unit 35 as the image quality adjustment image data DGC.
The screen reduction unit 35 reduces the screen size of the image corresponding to the image quality adjustment image data DGC and outputs reduced image data DC. In parallel with the output of the reduced image data DC, the memory setting unit 40 reduces the reduced image data DC. Since the storage destination of the data DC is set in the second frame memory 36C, the image quality adjustment image data DGC obtained by applying the preset value B of the image quality adjustment parameter is written and stored in the second frame memory 36C. (Step S8).

When the image quality adjustment image data DGC obtained by applying the preset value C of the image quality adjustment parameter is completely written to the second frame memory 36C, the image quality adjustment unit 34 outputs the image quality adjustment unit 34 from the first switching unit 33. For the second image data DG2, this time, based on the parameter adjustment instruction data Dp, the preset value D of the parameter for the fourth image quality adjustment, for example, the brightness parameter PM1, the contrast parameter PM2, the fourth user preset mode M7, Six parameters of the color density parameter PM3, the hue parameter PM4, the sharpness parameter PM5, and the color temperature parameter PM6 are applied (step S9), and are output to the screen reduction unit 35 as the image quality adjustment image data DGC.
The screen reduction unit 35 reduces the screen size of the image corresponding to the image quality adjustment image data DGC and outputs reduced image data DC. In parallel with the output of the reduced image data DC, the memory setting unit 20 reduces the reduced image data DC. Since the storage destination of the data DC is set in the second frame memory 36D, the image quality adjustment image data DGC obtained by applying the preset value B of the image quality adjustment parameter is written and stored in the second frame memory 36D. (Step S10).
Next, the synthesizing unit 37 reads the image quality adjustment image data DGC corresponding to each from the second frame memories 36A to 36D, synthesizes them into one screen, and outputs them to the second switching unit 41 (step S11).
At this time, since the second selection instruction signal Ss2 by the operation of the operation unit 18 is input, the MPU 21 functions as the second switching unit 41 and displays the combined comparison image data DCC output from the combining unit 37 on the display unit 42. And a composite comparison screen is displayed (step S11).

FIG. 6 is an explanatory diagram of a display example of the composite comparison screen.
As shown in FIG. 6, the composite comparison screen 60 displays an image corresponding to the image quality adjustment image data DGC stored in the second frame memory 36A obtained by applying the preset value A of the image quality adjustment parameter. The second image displaying the image corresponding to the image quality adjustment image data DGC stored in the second frame memory 36B obtained by applying the first image display area 61A to be applied and the preset value B of the image quality adjustment parameter A display area 61B, and a third image display area 61C for displaying an image corresponding to the image quality adjustment image data DGC stored in the second frame memory 36C obtained by applying the preset value C of the image quality adjustment parameter. In the second frame memory 36D obtained by applying the preset value D of the parameter for image quality adjustment A fourth image display area 61D for displaying the image corresponding to the paid image quality adjusted image data DGC, and a.
As a result, the user designates and selects an image having a desired image quality from the images displayed in the first image display area 61A to the fourth image display area 61D via the operation unit 18 (step S12). In this case, the image quality of the images displayed in the first image display area 61A to the fourth image display area 61D depends on the preset value selected in advance, but the original image input from the image input terminal 31. It is possible to easily adjust the original image quality of (the image corresponding to the first image data DG1) and the image quality deemed most suitable for the user depending on the viewing environment (such as ambient light).

As a result, the MPU sets the preset value of the image quality adjustment parameter corresponding to the selected image in the image quality adjustment unit 34 (step S13). As a result, for example, when the image displayed in the second image display area 61B is selected, the preset value B of the image quality adjustment parameter is set in the image quality adjustment unit 34.
When an image is selected via the operation unit 38, the first switching unit 33 is switched to the image input terminal 31 side by the first selection instruction signal Ss1, and the second switching is performed by the second selection instruction signal Ss2. The unit 41 is switched to the image quality adjustment unit 34 side (step S14).
As a result, the first image data DG1 input from the image input terminal 31 is input to the image quality adjustment unit 34, and the image quality adjustment unit 34 receives the first image data DG1 input via the first switching unit 33. Based on the parameter adjustment instruction data Dp, the image quality adjustment parameter preset value B is applied and output to the display unit 42 via the second switching unit 41. The display unit 42 is selected by the user. An image to which the preset value B of the image quality adjustment parameter corresponding to the image quality is applied is displayed.
As described above, according to the first embodiment, the user can set the image quality more optimal for the user by selecting a desired reduced screen from a plurality of reduced screens.

[2] Second Embodiment FIG. 7 is a functional block diagram of an image processing apparatus according to a second embodiment.
The image processing apparatus 70 reduces the screen size of the image corresponding to the image data DG input from the image input terminal 71 and outputs reduced image data DC, and distribution that distributes and outputs the reduced image data DC. Based on the unit 73, the main image quality adjustment unit 74 that applies the image quality adjustment parameter to the first image data DG1 based on the parameter adjustment instruction data Dp0, and outputs the image quality adjustment image data DGC, and the parameter adjustment instruction data Dp1 The image quality adjustment parameters are applied to the reduced image data DC and output as the first reduced image quality adjustment image data DGC1, and the reduced image data DC based on the parameter adjustment instruction data Dp2. A second image that is output as second reduced image quality adjustment image data DGC2 by applying an image quality adjustment parameter An image quality adjustment unit 75B, a third sub image quality adjustment unit 75C that applies image quality adjustment parameters to the reduced image data DC based on the parameter adjustment instruction data Dp3, and outputs the reduced image quality adjustment image data DGC3; Based on the adjustment instruction data Dp4, a parameter for image quality adjustment is applied to the reduced image data DC, and the fourth sub-image quality adjustment unit 75D outputs the fourth reduced image quality adjustment image data DGC4, and the first reduced image quality adjustment image data DGC1. To the fourth reduced image quality adjustment image data DGC4 (= corresponding to the original comparison screen data), and the first reduced image quality adjustment image data DGC1 to the fourth reduced image quality adjustment image data DGC4 are combined to produce the combined comparison image data DCC ( = Corresponding to the comparison screen data) and the image data input from the image input terminal 71. A switching unit 77 that exclusively outputs one of the data DG or the synthesized comparison image data DCC output from the synthesizing unit 76 based on the selection instruction signal Ss, and the user performs various operations and selects based on the operation state. An operation unit 78 that outputs various operation signals including an instruction signal Ss, a parameter adjustment unit 79 that outputs parameter adjustment instruction data Dp based on an operation state of the operation unit 78, and a parameter adjustment instruction output by the parameter adjustment unit 79 The parameter setting unit 80 that sets the data Dp as parameter adjustment instruction data Dp1 to Dp4 for any of the first sub-image quality adjusting unit 75A to the fourth sub-image quality adjusting unit 75D, and the image quality adjustment output by the main image quality adjusting unit 74 And a display unit 81 that performs display based on the image data DGC or the composite comparison image data DCC.

FIG. 8 is a process flowchart of the second embodiment.
In the following description, it is assumed that a maximum of four comparison screens are displayed simultaneously on the comparison screen for screen adjustment, and the preset mode used for displaying the comparison screen is instructed by the user in advance. To do.
The MPU 21 switches the switching unit 77 to the combining unit 76 side (step S21).
In parallel with this, the screen reduction unit 72 reduces the screen size of the image corresponding to the image data DG input from the image input terminal 71 and outputs the reduced image data DC to the distribution unit 73. The distribution unit 73 distributes and outputs the reduced image data DC to the first sub image quality adjustment unit 75A to the fourth sub image quality adjustment unit 75D.
As a result, the first sub-image quality adjustment unit 75A applies the preset value A of the first image quality adjustment parameter to the reduced image data DC output from the distribution unit 73 based on the parameter adjustment instruction data Dp1, for example, dynamic Six parameters of brightness parameter PM1, contrast parameter PM2, color density parameter PM3, hue parameter PM4, sharpness parameter PM5 and color temperature parameter PM6 in mode M1 are applied (step S22), and the first reduced image quality adjustment image data is applied. The data is output to the synthesis unit 76 as DGC1.

Further, the second sub-image quality adjustment unit 75B applies the preset value B of the second image quality adjustment parameter to the reduced image data DC output from the distribution unit 73 based on the parameter adjustment instruction data Dp2, for example, the theater mode. Six parameters of M3 brightness parameter PM1, contrast parameter PM2, color density parameter PM3, hue parameter PM4, sharpness parameter PM5 and color temperature parameter PM6 are applied (step S23), and the second reduced image quality adjustment image data DGC2 is applied. To the combining unit 76.
Also, the third sub-image quality adjustment unit 75C applies the preset value C of the third image quality adjustment parameter to the reduced image data DC output from the distribution unit 73 based on the parameter adjustment instruction data Dp3, for example, the second Six parameters of brightness parameter PM1, contrast parameter PM2, color density parameter PM3, hue parameter PM4, sharpness parameter PM5 and color temperature parameter PM6 in user preset mode M5 are applied (step S24), and the third reduced image quality adjustment is performed. The image data DGC3 is output to the combining unit 76.

Further, the fourth sub-image quality adjustment unit 75D applies the preset value D of the parameter for the fourth image quality adjustment based on the parameter adjustment instruction data Dp4 to the reduced image data DC output from the distribution unit 73, for example, the fourth Six parameters of brightness parameter PM1, contrast parameter PM2, color density parameter PM3, hue parameter PM4, sharpness parameter PM5 and color temperature parameter PM6 in user preset mode M7 are applied (step S25), and the fourth reduced image quality adjustment is performed. The image data DGC4 is output to the combining unit 76.
Next, the synthesizing unit 76 synthesizes the input first reduced image quality adjustment image data DGC1 to fourth reduced image quality adjustment image data DGC4 into one screen and outputs it to the switching unit 77 (step S26).
At this time, since the selection instruction signal Ss by the operation of the operation unit 18 is input, the MPU 21 outputs the combined comparison image data DCC output from the combining unit 76 to the display unit 81, as shown in FIG. Display the composite comparison screen.
Accordingly, the user designates and selects an image having a desired image quality from the images displayed in the first image display area 61A to the fourth image display area 61D (see FIG. 6) via the operation unit 78. (Step S27). Even in this case, the image quality of the images displayed in the first image display area 61A to the fourth image display area 61D depends on the preset value selected in advance, but the original image input from the image input terminal 71 is not used. It is possible to easily adjust the original image quality of the image (the image corresponding to the first image data DG1) and the image quality considered most suitable for the user depending on the viewing environment (such as ambient light).

As a result, the MPU 21 sets the preset value of the image quality adjustment parameter corresponding to the selected image in the main image quality adjustment unit 74 (step S28). As a result, for example, when the image displayed in the second image display area 61B is selected, the preset value B of the image quality adjustment parameter is set in the main image quality adjustment unit 74.
When an image is selected through the operation unit 78, the switching unit 77 is switched to the main image quality adjustment unit 74 side by the selection instruction signal Ss.
As a result, the image data DG input from the image input terminal 71 is input to the main image quality adjustment unit 74, and the main image quality adjustment unit 74 performs the input image data DG on the basis of the parameter adjustment instruction data Dp. The image quality adjustment parameter preset value B is applied and output to the switching unit 77, and the image quality adjustment parameter preset value B corresponding to the image quality selected by the user is applied to the display unit 81. An image will be displayed.
As described above, also according to the second embodiment, the user can set the image quality more optimal for the user by selecting a desired reduced screen from a plurality of reduced screens.

In the above description, when a plurality of reduced screens are displayed on the comparison screen, the preset value of the image quality adjustment parameter is used. However, the user arbitrarily set a part or all of the reduced screens. It is also possible to configure to set parameters for image quality adjustment.
In the above description, the case where the control program for realizing the above functions is stored in the ROM in advance has been described. However, the control program may be recorded on a computer-readable recording medium. With such a configuration, when the program is read from the storage medium by the computer and the computer executes processing according to the read program, the same operation and effect as those of the image information processing apparatus of the above-described embodiment can be obtained.
Here, the storage medium is a semiconductor storage medium such as RAM or ROM, a magnetic storage type storage medium such as FD or HD, an optical reading type storage medium such as CD, CDV, LD, or DVD, or a magnetic storage type such as MO. / Optical reading type storage medium, and any storage medium can be used as long as it can be read by a computer regardless of electronic, magnetic, optical, etc. .
It is also possible to download, install, and execute a control program via a communication network such as the Internet or a LAN.

1 is a schematic configuration block diagram of an image processing apparatus according to a first embodiment. It is a functional block diagram of an image processing apparatus. It is a figure explaining an example of the preset value of the parameter for image quality adjustment. It is a processing flowchart of a 1st embodiment. It is explanatory drawing of an example of 1st image data. It is explanatory drawing of the example of a display of a synthetic | combination comparison screen. It is a functional block diagram of the image processing apparatus of 2nd Embodiment. It is a processing flowchart of a 2nd embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Image display apparatus, 11 ... Image display apparatus main body, 12 ... Image input apparatus, 13 ... Input apparatus, 14 ... Display apparatus, 15 ... External storage device, 20 ... Memory setting part, 21 ... MPU, 22 ... ROM, 23 ... RAM, 24 ... communication interface unit, 31 ... image input terminal, 32 ... first frame memory, 33 ... first switching unit, 34 ... image quality adjusting unit, 35 ... screen reduction unit, 36A ... second frame memory, 36B ... 2nd frame memory, 36C ... 2nd frame memory, 36D ... 2nd frame memory, 37 ... Composition part, 38 ... Operation part, 39 ... Parameter adjustment part, 40 ... Memory setting part, 41 ... 2nd switching part, 42 ... Display unit 60... Composite comparison screen 61 A First image display area 61 B Second image display area 61 C Third image display area 61 D Fourth image display area 70 Image processing device DESCRIPTION OF SYMBOLS 1 ... Image input terminal 72 ... Screen reduction part, 73 ... Distribution part, 74 ... Main image quality adjustment part, 75A ... 1st sub image quality adjustment part, 75B ... 2nd sub image quality adjustment part, 75C ... 3rd sub image quality adjustment part 75D ... 4th sub-image quality adjusting unit, 76 ... compositing unit, 77 ... switching unit, 78 ... operating unit, 79 ... parameter adjusting unit, 80 ... parameter setting unit, 81 ... display unit.

Claims (9)

An image display device that displays an image by applying a set image quality adjustment parameter to input image data,
An image quality adjustment unit that generates a plurality of original comparison screen data to which different image quality adjustment parameters are applied to the image data;
Based on the original comparison screen data generated by the image quality adjustment unit, a comparison screen generation unit that generates comparison screen data representing a comparison screen obtained by combining a plurality of images to which different image quality adjustment parameters are applied;
A display unit for displaying the comparison screen based on the comparison screen data generated by the comparison screen generation unit;
A selection unit configured to select any one of a plurality of images included in the comparison screen and having different image quality adjustment parameters applied to each other;
A parameter setting unit that uses the image quality adjustment parameter applied to the selected image as the set image quality adjustment parameter;
An image display device comprising: The image display device according to claim 1,
The image quality adjustment unit includes an input image storage unit that stores the input image data;
An original comparison screen data generation unit that generates a plurality of the original comparison screen data by making different image quality adjustment parameters to be applied to the input image data stored in the input image storage unit,
The comparison screen generation unit generates the comparison screen data based on the plurality of original comparison screen data generated by the original comparison screen data generation unit;
An image display device characterized by that. The image display device according to claim 2,
The comparison screen generation unit reduces the image represented by the original comparison screen data to generate reduced image data; and
A plurality of reduced image storage units respectively storing a plurality of reduced image data generated by the image reduction unit;
An image composition unit for compositing images represented by the plurality of reduced image data to generate the comparison screen data;
An image display device comprising: The image display device according to claim 1,
The image quality adjustment unit applies a set image quality adjustment parameter to the input image data to generate the image quality adjustment image data, and a reduction represented by an image obtained by reducing an image represented by the input image data The image quality adjustment parameters applied to the input image data are different from each other, each having a plurality of second image quality adjustment units for generating the original comparison screen data.
The comparison screen generation unit generates the comparison screen data based on a plurality of original comparison screen data respectively output from the plurality of second image quality adjustment units.
An image display device characterized by that. The image display device according to claim 4.
The comparison screen generation unit, an image reduction unit that generates reduced input image data corresponding to an image obtained by reducing the image represented by the input image data;
An image distribution unit that distributes the reduced input image data to the plurality of second image quality adjustment units;
An image combining unit that combines the images represented by the plurality of original comparison screen data output by the plurality of second image quality adjustment units, respectively, to generate the comparison screen data;
An image display device comprising: The image display device according to any one of claims 1 to 5,
One or a plurality of preset image quality adjustment parameters are applied as image quality adjustment parameters. The image display device according to any one of claims 1 to 6,
The image display device, wherein the image quality adjustment parameter includes at least one of brightness, contrast, color density, hue, sharpness, and color temperature. An image display method for displaying an image by applying a set image quality adjustment parameter to input image data,
An image quality adjustment process for generating a plurality of original comparison screen data applying different image quality adjustment parameters to the image data;
A comparison screen generation process for generating comparison screen data representing a comparison screen obtained by combining a plurality of images to which different image quality adjustment parameters are applied, based on the original comparison screen data generated by the image quality adjustment process;
A display step of displaying the comparison screen based on the comparison screen data generated in the comparison screen generation step;
A selection process for selecting one of a plurality of images to which different image quality adjustment parameters are applied included in the comparison screen;
A parameter setting process in which the set image quality adjustment parameter is the image quality adjustment parameter applied to the selected image;
An image display method comprising: A control program for controlling an image display device that has a display unit and displays an image by applying a set image quality adjustment parameter to input image data,
Generating a plurality of original comparison screen data applying different image quality adjustment parameters to the image data;
Based on the generated original comparison screen data, to generate comparison screen data representing a comparison screen obtained by combining a plurality of images to which different image quality adjustment parameters are applied,
Based on the generated comparison screen data, display the comparison screen on the display unit,
One of the plurality of images applied with different image quality adjustment parameters included in the comparison screen is selected,
The image quality adjustment parameter applied to the selected image is the set image quality adjustment parameter.
A control program characterized by that.

Images