JP6120515B2 - Image processing apparatus, image processing method, and program - Google Patents

Description

  The present invention relates to a technique for adjusting image quality for a plurality of image data.

  As a technique for individually adjusting the image quality of a plurality of displayed images, the user individually sets the image quality adjustment method for the plurality of images, and displays the image reflecting the user's intention even in multi-screen display. A technique capable of performing the above is disclosed (see Patent Document 1).

Japanese Patent Laying-Open No. 2005-077859

  However, with the technique disclosed in Patent Document 1, it is possible to perform display that reflects the user's intention even in multi-screen display. However, when a setting that exceeds the image quality adjustment range is instructed by the user, this is reflected. There is a problem that cannot be made.

  Therefore, an object of the present invention is to make it possible to show the effect of image quality setting even when the image quality setting instructed by the user exceeds the limit.

An image processing apparatus according to the present invention includes: a receiving unit that receives an adjustment instruction for adjusting a setting value related to at least one image quality among a plurality of input images; and the receiving unit receives a first input image of the plurality of input images. When an adjustment instruction for increasing a setting value relating to image quality is received, the setting value of the first input image reaches a predetermined upper limit value, and the second input image of the plurality of input images If the set value does not reach the predetermined lower limit value, the set value of the first input image is not changed and the set value of the second input image is lowered in response to acceptance of the adjustment instruction. On the other hand, when the accepting unit accepts an adjustment instruction for increasing a set value related to the image quality of the first input image among the plurality of input images, the set value of the first input image is When the predetermined upper limit value is not reached, in response to acceptance of the adjustment instruction, the setting value of the first input image is increased, and the setting value of the second input image among the plurality of input images And a control means that does not change .

  According to the present invention, it is possible to show the effect of image quality setting even when the image quality setting instructed by the user exceeds the limit.

It is a figure which shows the structure of the image display apparatus which concerns on embodiment of this invention. It is a flowchart which shows the calculation process of the theoretical setting value in a theoretical setting value calculation part. It is a figure for demonstrating concretely the calculation process of the theoretical setting value in a theoretical setting value calculation part. 6 is a flowchart illustrating an image quality setting value calculation process of an actual setting value calculation unit according to the first embodiment. It is a figure for demonstrating concretely the calculation process of the image quality setting value of an actual setting value calculation part. It is a figure for demonstrating concretely about a series of processes in 1st Embodiment. It is a flowchart which shows the calculation process of the image quality setting value of the actual setting value calculation part in 2nd Embodiment. It is a figure for demonstrating concretely the calculation process of the image quality setting value of the actual setting value calculation part in 2nd Embodiment.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments to which the invention is applied will be described in detail with reference to the accompanying drawings.

  First, a first embodiment of the present invention will be described. FIG. 1A is a diagram illustrating a configuration of an image display device 100 according to the first embodiment. The image display apparatus 100 is provided with four image input units 101 to 104. The image display device 100 displays image data input from any one or more of the image input units 101 to 104. Here, the case where the image display apparatus 100 includes four image input units 101 to 104 will be described. However, the number of the image input units 101 to 104 is not limited thereto, and may be any number as long as it is plural. The image display device 100 is a configuration that is an example of an image processing device.

  The image input units 101 to 104 include an input terminal for receiving image data, video image data, and the like output from a computer, a receiver, and the like. Here, a case where the image input units 101 to 104 are configured by an input terminal, a receiver, and the like will be described. However, a configuration in which a plurality of image output devices are connected via a LAN may be used. In addition, a plurality of pieces of image data may be read from the storage device instead of physically different image input units.

The image adjustment unit 111 uses the image quality setting value calculated by the actual setting value calculation unit 125 for each image data input from the image input units 101 to 104, and performs brightness adjustment, contrast adjustment, and hue. Adjust image quality such as adjustment. The image display unit 112 displays the image data whose image quality has been adjusted by the image adjustment unit 111.

The image adjustment instruction unit 121 receives an image quality adjustment instruction such as brightness by the operator for each of the image input units 101 to 104. The image quality adjustment instruction can be given from a button provided on the main body of the image display device 100, a button by a remote control, a menu screen displayed on the image display device, or the like. The image adjustment instruction unit 121 is an example of a reception unit.

The theoretical setting value storage unit 122 stores theoretical image quality setting values (hereinafter referred to as theoretical setting values) for the respective image data input from the image input units 101 to 104. The theoretical setting value calculation unit 123 newly calculates a theoretical setting value based on the image quality adjustment value input from the image adjustment instruction unit 121 and the theoretical setting value read from the theoretical setting value storage unit 122. The theoretical setting value is an example of a first image quality setting value, and the theoretical setting value calculation unit 123 is an example of a first calculation unit.

The device restriction storage unit 124 stores an upper limit value and a lower limit value of image quality setting values in the image display device 100. Based on the theoretical setting value calculated by the theoretical setting value calculation unit 123 and the upper limit value and the lower limit value of the image quality setting value read from the device restriction storage unit 124, the actual setting value calculation unit 125 sends to the image adjustment unit 111. The image quality setting value to be specified is calculated.

  FIG. 1B is a diagram illustrating an image display example in the image display apparatus 100. FIG. 1B illustrates an example in which four image data input from the image input units 101 to 104 are displayed on four screens.

  FIG. 2 is a flowchart showing a theoretical setting value calculation process in the theoretical setting value calculation unit 123. The processing shown in FIG. 2 is realized by the CPU reading out necessary programs and data from a recording medium such as a ROM in the image display apparatus 100 according to the present embodiment, and developing and executing the programs on the RAM. It is.

In step S201, the theoretical setting value calculation unit 123 inputs an image quality adjustment value from the image adjustment instruction unit 121 as an image quality adjustment instruction. In step S <b> 202, the theoretical set value calculation unit 123 reads the theoretical set value from the theoretical set value storage unit 122. In step S203, the theoretical setting value calculation unit 123 calculates a new theoretical setting value by adding the image quality adjustment value input in step S201 to the theoretical setting value read in step S202. In step S204, the theoretical set value calculation unit 123 causes the theoretical set value storage unit 122 to store the theoretical set value calculated in step S203. In step S <b> 205, the theoretical set value calculation unit 123 outputs the theoretical set value to the actual set value calculation unit 125.

Here, the process described with reference to FIG. 2 will be specifically described with reference to FIG. As indicated by 301 in FIG. 3, the image adjustment instruction unit 121 receives the image quality adjustment value “+1” as an image quality adjustment instruction for the image data input from the image input unit 101 and outputs the image quality adjustment value “+1” to the theoretical setting value calculation unit 123. To do. Further, as shown by 302 in FIG. 3, the theoretical set value storage unit 122 corresponds to the respective image data input from the image input units 101 to 104 and the theoretical set values “10”, “10”, “9”. And “8” are stored.

The theoretical setting value calculation unit 123 adds the image quality adjustment value “+1” input from the image adjustment instruction unit 121 to the theoretical setting value “10” read from the theoretical setting value storage unit 122 for the image data input from the image input unit 101. Is added. As a result, a new theoretical set value “11” is calculated as indicated by 303 in FIG. The theoretical set value calculation unit 123 stores the new theoretical set value “11” in the theoretical set value storage unit 122 and outputs it to the actual set value calculation unit 125.

3 shows that the image adjustment instruction unit 121 has not accepted an image quality adjustment instruction for each image data input from the image input units 102 to 104. Therefore, the theoretical set value calculation unit 123 outputs the theoretical set value read from the theoretical set value storage unit 122 to the actual set value calculation unit 125 as it is.

  Next, an image quality setting value calculation process of the actual setting value calculation unit 125 according to the first embodiment will be described with reference to FIG. Note that the processing shown in FIG. 4 is realized by the CPU reading a necessary program and data from a recording medium such as a ROM in the image display apparatus 100 according to the present embodiment, and developing and executing the program on the RAM. It is.

  In step S <b> 401, the actual setting value calculation unit 125 sets the theoretical setting value input from the theoretical setting value calculation unit 123 as a temporary setting value. In step S <b> 402, the actual setting value calculation unit 125 reads out the upper limit value and the lower limit value of the image quality setting value from the device restriction storage unit 124.

  In step S403, the actual setting value calculation unit 125 compares the maximum value among the temporary setting values corresponding to the image input units 101 to 104 with the upper limit value of the image quality setting value. If the maximum value of the temporary setting values is larger than the upper limit value of the image quality setting value, the process proceeds to step S404. On the other hand, if the maximum value among the temporary setting values is equal to or less than the upper limit value of the image quality setting value, the process proceeds to step S407.

  In step S404, the actual setting value calculation unit 125 compares the minimum value among the temporary setting values corresponding to the image input units 101 to 104 with the lower limit value of the image quality setting value. If the minimum value of the temporary setting values is greater than the lower limit value of the image quality setting value, the process proceeds to step S405. On the other hand, if the minimum value of the temporary setting values is less than or equal to the lower limit value of the image quality setting value, the process proceeds to step S406.

  In step S405, the actual setting value calculation unit 125 sets values obtained by subtracting 1 from all the temporary setting values as new temporary setting values. Then, the process returns to step S403. In step S406, the actual setting value calculation unit 125 sets a value obtained by subtracting 1 from the maximum value among the temporary setting values for the image input units 101 to 104 as a new temporary setting value. Then, the process returns to step S403.

  In step S407, the actual setting value calculation unit 125 compares the minimum value of the temporary setting values corresponding to the image input units 101 to 104 with the lower limit value of the image quality setting value. If the minimum value of the temporary setting values is smaller than the lower limit value of the image quality setting value, the process proceeds to step S408. On the other hand, if the minimum value of the temporary setting values is equal to or greater than the lower limit value of the image quality setting value, the process proceeds to step S411.

  In step S408, the actual setting value calculation unit 125 compares the maximum value of the temporary setting values corresponding to the image input units 101 to 104 with the upper limit value of the image quality setting value. If the maximum value of the temporary setting values is smaller than the upper limit value of the image quality setting value, the process proceeds to step S409. On the other hand, when the maximum value among the temporary setting values is equal to or greater than the upper limit value of the image quality setting value, the process proceeds to step S410.

In step S409, the actual setting value calculation unit 125 sets a value obtained by adding 1 to all the temporary setting values as a new temporary setting value. Then, the process returns to step S403. In step S410, the actual setting value calculation unit 125 sets a value obtained by adding 1 to the minimum value among the temporary setting values corresponding to the image input units 101 to 104 as a new temporary setting value. Then, the process returns to step S403. In step S411, the actual setting value calculation unit 125 outputs the calculated temporary setting value to the image adjustment unit 111.

  Here, the processing described with reference to FIG. 4 will be specifically described with reference to FIGS. In FIG. 5A, the temporary setting values corresponding to the image input units 101 to 104 are “11”, “10”, “9”, and “8”, and the upper limit value of the image quality setting value is “10”. The lower limit value of the image quality setting value is “−10”.

  As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “11” in the temporary setting value 501 with the upper limit value “10” 502 of the image quality setting value. Here, since the maximum value “11” of the temporary setting values is larger, the process proceeds from step S403 to S404. As processing corresponding to step S404, the actual setting value calculation unit 125 compares the minimum value “8” in the temporary setting value 501 with the lower limit value “−10” 503 of the image quality setting value. Here, since the minimum value “8” in the temporary setting value 501 is larger, the process proceeds from step S404 to S405 in FIG.

As processing corresponding to step S <b> 405, the actual setting value calculation unit 125 sets a value obtained by subtracting 1 from all the temporary setting values 501 as a new temporary setting value 504. Then, the process returns to step S403. As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “10” in the temporary setting value 504 with the upper limit value “10” 502 of the image quality setting value. Here, since these are equal, the process proceeds to step S407. As processing corresponding to step S407, the actual setting value calculation unit 125 compares the minimum value “8” in the temporary setting value 504 with the lower limit value “−10” 503 of the image quality setting value. Here, since the minimum value “8” in the temporary setting value 504 is larger, the process proceeds from step S407 to S411. In step S411, the actual setting value calculation unit 125 outputs the temporary setting value 504 to the image adjustment unit 111 as an actual setting value (hereinafter referred to as an actual setting value). The actual setting value is an example of a second image quality setting value, and the actual setting value calculation unit 125 is an example of a second calculation unit.

  In FIG. 5B, the temporary setting values corresponding to the image input units 101 to 104 are “11”, “10”, “9”, and “−10”, respectively, and the upper limit value of the image quality setting value is “10”. The lower limit value of the image quality setting value is “−10”.

  As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “11” in the temporary setting value 505 with the upper limit value “10” 506 of the image quality setting value. Here, since the maximum value “11” of the temporary setting values is larger, the process proceeds from step S403 to S404. As processing corresponding to step S404, the actual setting value calculation unit 125 compares the minimum value “−10” in the temporary setting value 505 with the lower limit value “−10” 507 of the image quality setting value. Here, since these are equal, the process proceeds from step S404 to S406. As processing corresponding to step S <b> 406, the actual setting value calculation unit 125 sets a value “10” obtained by subtracting 1 from the maximum value “11” of the temporary setting value 505 as a new temporary setting value 508. Then, the process returns to step S403. As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “10” in the temporary setting value 505 with the upper limit value “10” 506 of the image quality setting value. Here, since these are equal, the process proceeds to step S407.

As processing corresponding to step S407, the actual setting value calculation unit 125 compares the minimum value “−10” in the temporary setting value 508 with the lower limit value “−10” 507 of the image quality setting value. Here, since these are equal, the process proceeds from step S407 to S411. As processing corresponding to step S411, the actual setting value calculation unit 125 outputs the temporary setting value 508 to the image adjustment unit 111 as an actual setting value.

  In FIG. 5C, the temporary setting values corresponding to the images of the image input units 101 to 104 are “−11”, “9”, “8”, and “7”, and the upper limit value of the image quality setting value is “10”. “, The lower limit value of the image quality setting value is“ −10 ”.

As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “9” in the temporary setting value 509 with the upper limit value “10” 510 of the image quality setting value. Here, since the maximum value “9” in the temporary setting value 509 is smaller, the process proceeds from step S403 to S407. As processing corresponding to step S407, the actual setting value calculation unit 125 compares the minimum value “−11” in the temporary setting value 509 with the lower limit value “−10” 511 of the image quality setting value. Here, since the minimum value “−11” in the temporary setting value 509 is smaller, the process proceeds from step S407 to S408. As processing corresponding to step S408, the actual setting value calculation unit 125 compares the maximum value “9” in the temporary setting value 509 with the upper limit value “10” 510 of the image quality setting value. Here, since the maximum value “9” in the temporary setting value 509 is smaller, the process proceeds from step S408 to S409. As processing corresponding to step S409, the actual setting value calculation unit 125 sets a value obtained by adding 1 to all the temporary setting values 509 as a new temporary setting value 512. Then, the process returns to step S403. As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “10” in the temporary setting value 512 with the upper limit value “10” 510 of the image quality setting value. Here, since these are equal, the process proceeds from step S403 to S407. As a process corresponding to step S407, the actual setting value calculation unit 125 compares the minimum value “−10” in the temporary setting value 512 with the lower limit value “−10” 511 of the image quality setting value. Here, since these are equal, the process proceeds to step S411. As processing corresponding to step S411, the actual setting value calculation unit 125 outputs the temporary setting value 512 to the image adjustment unit 111 as an actual setting value.

  In FIG. 5D, the temporary setting values corresponding to the image input units 101 to 104 are “−11”, “10”, “8”, and “7”, respectively, and the upper limit value of the image quality setting value is “10”. The lower limit value of the image quality setting value is “−10”.

As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “10” in the temporary setting value 513 with the upper limit value “10” 514 of the image quality setting value. Here, since these are equal, the process proceeds from step S403 to S407. As processing corresponding to step S407, the actual setting value calculation unit 125 compares the minimum value “−11” in the temporary setting value 513 with the lower limit value “−10” 515 of the image quality setting value. Here, since the minimum value “−11” in the temporary setting value 513 is smaller, the process proceeds from step S407 to S408. As processing corresponding to step S408, the actual setting value calculation unit 125 compares the maximum value “10” in the temporary setting value 513 with the upper limit value “10” 514 of the image quality setting value. Here, since these are equal, the process proceeds from step S408 to S410. As processing corresponding to step S <b> 410, the actual setting value calculation unit 125 sets a value “−10” obtained by adding 1 to the minimum value “−11” of the temporary setting value 516 as a new temporary setting value 516. Then, the process returns to step S403. As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “10” in the temporary setting value 516 with the upper limit value “10” 514 of the image quality setting value. Here, since these are equal, the process proceeds from step S403 to S407. As processing corresponding to step S407, the actual setting value calculation unit 125 compares the minimum value “−10” in the temporary setting value 516 with the lower limit value “−10” 515 of the image quality setting value. Here, since these are equal, the process proceeds from step S407 to S411. In step S411, the actual setting value calculation unit 125 outputs the temporary setting value 516 to the image adjustment unit 111 as an actual setting value.

Next, a series of processing according to the present embodiment will be specifically described with reference to FIG. As a process corresponding to step S <b> 201 in FIG. 2, the theoretical setting value calculation unit 123 inputs an image quality setting value “+1” 601 from the image adjustment instruction unit 121 as an image quality adjustment instruction for image data input from the image input unit 101. . The theoretical set value storage unit 122 stores theoretical set values “10”, “10”, “9”, and “8” for each image data input from the image input units 101 to 104.

As a process corresponding to step S <b> 203 in FIG. 2, the theoretical set value calculation unit 123 adjusts the image quality of the image data input from the image input unit 101 to the theoretical set value “10” 602 read from the theoretical set value storage unit 122. The value “+1” 601 is added. As a result, a new theoretical set value “11” 603 is calculated. As a process corresponding to steps S204 and S205 of FIG. 2, the theoretical set value calculation unit 123 stores the theoretical set value “11” 603 in the theoretical set value storage unit 122 and outputs it to the actual set value calculation unit 125. To do. Note that there is no image quality adjustment instruction from the image adjustment instruction unit 121 for each image data input from the image input units 102 to 104. Therefore, the theoretical set value calculation unit 123 outputs the theoretical set value 602 read from the theoretical set value storage unit 122 to the actual set value calculation unit 125 as it is.

  Next, as processing corresponding to step S403 in FIG. 4, the actual setting value calculation unit 125 compares the maximum value “11” in the temporary setting value 603 with the upper limit value “10” 604 of the image quality setting value. Here, since the maximum value “11” in the temporary setting value 603 is larger, the process proceeds to step S404. As a process corresponding to step S404 in FIG. 4, the actual setting value calculation unit 125 compares the minimum value “8” in the temporary setting value 603 with the lower limit value “−10” 605 of the image quality setting value. Here, since the minimum value “8” in the temporary setting value 603 is larger, the process proceeds from step S404 to S405. As processing corresponding to step S <b> 405, the actual setting value calculation unit 125 sets a value obtained by subtracting 1 from all the temporary setting values 603 as a new temporary setting value 606. Then, the process returns to step S403.

As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “10” in the temporary setting value 606 with the upper limit value “10” 604 of the image quality setting value. Here, since these are equal, the process proceeds from step S403 to S407. As processing corresponding to step S407, the actual setting value calculation unit 125 compares the minimum value “8” in the temporary setting value 606 with the lower limit value “−10” 605 of the image quality setting value. Here, since the minimum value “8” in the temporary setting value 606 is larger than the lower limit value “−10” 605 of the image quality setting value, the process proceeds from step S407 to S411. As processing corresponding to step S411, the actual setting value calculation unit 125 outputs the temporary setting value 606 to the image adjustment unit 111 as an actual setting value.

  As described above, when there is an image quality adjustment instruction “+1” for the image data input from the image input unit 101, the theoretical setting values for the image data input from the image input units 101 to 104 are respectively used. 1 is subtracted. Thereby, the image quality setting value for the image data input from the image input unit 101 can be relatively increased, and the effect of the image quality setting can be shown to the user. As described above, according to the present embodiment, it is possible to show the effect of image quality setting even when the image quality setting instructed by the user exceeds the limit of the apparatus.

Next, after the actual setting value calculation unit 125 outputs the temporary setting value 606 as the actual setting value to the image adjustment unit 111, an instruction to cancel the image quality adjustment value “+1” 601, that is, an image input from the image input unit 101. A case where the image quality adjustment value “−1” 607 for data is input from the image adjustment instruction unit 121 will be described.

The theoretical set value storage unit 122 stores the theoretical set value 603 calculated by the theoretical set value calculation unit 123. Accordingly, as a process corresponding to step S <b> 202, the theoretical set value calculation unit 123 reads the theoretical set value 608 that is the same as the theoretical set value 603 from the theoretical set value storage unit 122. As a process corresponding to step S203, the theoretical setting value calculation unit 123 sets the image data input from the image input unit 101 to the theoretical setting value “11” read from the theoretical setting value storage unit 122, and the image adjustment instruction unit 121. The input image quality adjustment value “−1” is added. Thereby, the theoretical set value “10” 609 is calculated. As processing corresponding to steps S204 and S205, the theoretical set value calculation unit 123 stores the theoretical set value “10” as the new theoretical set value 610 in the theoretical set value storage unit 122 and also stores the theoretical set value calculation unit 125 in the actual set value calculation unit 125. Output.

  As processing corresponding to step S403, the actual setting value calculation unit 125 compares the maximum value “10” in the temporary setting value 609 with the upper limit value “10” of the image quality setting value. Here, since the maximum value “10” in the temporary setting value 609 is less than or equal to the upper limit value “10” 604 of the image quality setting value, the process proceeds from step S403 to S404. As processing corresponding to step S <b> 404, the actual setting value calculation unit 125 compares the minimum value “8” in the temporary setting value 608 with the lower limit value “−10” 605 of the image quality setting value. Here, since the minimum value “8” of the temporary setting values is equal to or greater than the lower limit value “−10” of the image quality setting value, the process proceeds from step S407 to S411. As processing corresponding to step S411, the actual setting value calculation unit 125 outputs the temporary setting value 609 as the actual setting value 610 as it is.

  Thus, even if an actual setting value different from the theoretical setting value is set, a new actual setting value is calculated each time based on the image quality adjustment value instructed by the user and the stored theoretical setting value. By doing so, image quality adjustment based on the theoretical set value is always possible.

  Next, a second embodiment of the present invention will be described. In the above-described first embodiment, the case where the actual setting value is calculated using addition and subtraction has been described. On the other hand, in the second embodiment, a case where the actual set value is calculated using multiplication and division will be described. Since the image display device according to the second embodiment has the same configuration as the image display device according to the first embodiment shown in FIG. 1, the reference numerals shown in FIG. Shall be used.

  Hereinafter, the image quality setting value (actual setting value) calculation process of the actual setting value calculation unit 125 according to the second embodiment will be described with reference to FIG. Here, the same processes as those in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted. The processing shown in FIG. 7 is realized by the CPU reading a necessary program and data from a recording medium such as a ROM in the image display apparatus 100 according to the present embodiment, and developing and executing the program on the RAM. It is.

  In step S701, the actual setting value calculation unit 125 multiplies all temporary setting values by the maximum value of the absolute value of the upper limit value and the lower limit value of the image quality setting value read in step S402, Further, a value obtained by dividing the absolute value of all temporary setting values by the maximum value is calculated. Thus, new temporary setting values are calculated for all temporary setting values.

  Here, the processing shown in FIG. 7 will be specifically described with reference to FIG. FIG. 8 shows a case where the maximum absolute value of the temporary setting value 801 is “11” and the maximum value of the absolute value of the upper limit value and the absolute value of the lower limit value is “10”.

  As shown in FIG. 8, since the temporary setting value of the image data input from the image input unit 101 is “11”, the new temporary setting value is obtained as “10” by “11 × 10 ÷ 11”. Similarly, the new temporary setting value of the image data input from the image input unit 102 is obtained as “9” by “10 × 10 ÷ 11”. Here, a positive value obtained by rounding off the decimal point is set as a new temporary setting value. Similarly, the new temporary setting value of the image data input from the image input unit 103 is obtained as “9 × 10 ÷ 11≈8”, and the new temporary setting value of the image data input from the image input unit 104 is calculated. Is obtained as “8 × 10 ÷ 11≈7”.

  In the above-described embodiment, even when the image quality setting exceeding the limit value is made by the user, all the image quality setting values for the image data input from the image input units 101 to 104 are within the limits of the apparatus. Thereby, even when the image quality setting instructed by the user exceeds the limit, the effect of the image quality setting can be shown. In particular, when the viewing angle of the user is large, the amount of light perceived by the user changes due to the action of the iris. Therefore, by adjusting the image including the settings of other image data, the image data specified by the user is changed. It is possible to show the effect of image quality setting.

  The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

  100: Image display device, 101-104: Image input unit, 111: Image adjustment unit, 112: Image display unit, 121: Image adjustment instruction unit, 122: Theoretical set value storage unit, 123: Theoretical set value calculation unit, 124 : Device limit storage unit, 125: actual set value calculation unit

Claims (18)

Receiving means for receiving an adjustment instruction for adjusting a setting value relating to at least one image quality among a plurality of input images;
When the accepting unit accepts an adjustment instruction for increasing the set value related to the image quality of the first input image among the plurality of input images, the set value of the first input image has reached a predetermined upper limit value. And, when the set value of the second input image among the plurality of input images does not reach a predetermined lower limit value, the set value of the first input image is changed in response to acceptance of the adjustment instruction. Without lowering the setting value of the second input image,
When the receiving unit receives an adjustment instruction for increasing a setting value related to the image quality of the first input image among the plurality of input images, the setting value of the first input image reaches the predetermined upper limit value. A control unit that increases the set value of the first input image and does not change the set value of the second input image among the plurality of input images in response to accepting the adjustment instruction. An image processing apparatus comprising: When the receiving unit receives an adjustment instruction for lowering a setting value related to the image quality of the first input image among the plurality of input images , the control unit sets the setting value of the first input image to the predetermined value. And the set value of the second input image among the plurality of input images does not reach the predetermined upper limit value, in response to accepting the adjustment instruction, The image processing apparatus according to claim 1, wherein the setting value of the second input image is increased without changing the setting value of the one input image . It said adjustment instruction settings for image quality to be adjusted by the brightness, contrast, and, among the hue, the image processing apparatus according to claim 1 or 2, characterized in that a set value for at least one. The control means, the maximum value of the respective set values of the plurality of input images after adjustment by the adjustment instruction received by the receiving means is higher than the predetermined upper limit value, and the post-adjustment by the adjustment instruction If the minimum value of the respective set values of the plurality of input images is higher than the predetermined lower limit value, and characterized by subtracting a predetermined value from each of the set values of the plurality of input images after adjustment by the adjustment instruction The image processing apparatus according to any one of claims 1 to 3 . The control means, the maximum value of the respective set values of the plurality of input images after adjustment by the adjustment instruction received by the receiving means is higher than the predetermined upper limit value, and the post-adjustment by the adjustment instruction If the minimum value of the respective set values of the plurality of input images is not higher than the predetermined lower limit value, subtracting a predetermined value from the maximum value among the setting values of the plurality of input images after adjustment by the adjustment instruction the image processing apparatus according to any one of claims 1 to 4, characterized in that. It said control means, said minimum value of the respective set values of the plurality of input images after adjustment by the adjustment instruction received by the receiving means is lower than the predetermined lower limit value, and the post-adjustment by the adjustment instruction If the maximum value of the respective set values of the plurality of input images is lower than the predetermined upper limit value, and characterized by adding a predetermined value to each of the set values of the plurality of input images after adjustment by the adjustment instruction The image processing apparatus according to any one of claims 1 to 5 . It said control means, said minimum value of the respective set values of the plurality of input images after adjustment by the adjustment instruction received by the receiving means is lower than the predetermined lower limit value, and the post-adjustment by the adjustment instruction If the maximum value of the respective set values of the plurality of input images is not lower than the predetermined upper limit value, adding a predetermined value to the minimum value among the setting values of the plurality of input images after adjustment by the adjustment instruction the image processing apparatus according to any one of claims 1 to 6, wherein. Wherein if the maximum value of the respective set values of the plurality of input images after adjustment by the adjustment instruction accepted by the accepting means is higher than the predetermined upper limit value, and was accepted by the accepting means in the case where the minimum value of the respective set values of the plurality of input images after adjustment by the adjustment instruction of at least one of lower than the predetermined lower limit value, each of the plurality of input images after adjustment by the adjustment instruction Is multiplied by the larger absolute value of the absolute value of the predetermined upper limit value and the absolute value of the predetermined lower limit value, and the plurality of input images adjusted by the adjustment instruction The image processing apparatus according to claim 1, wherein the absolute value of each set value is divided by a maximum value. A plurality of image input means;
Wherein the plurality of input images, the image processing apparatus according to any one of claims 1 to 8, characterized in that the input by the plurality of image input means. The image processing apparatus according to claim 1, further comprising a display control unit configured to display a plurality of images according to the plurality of input images . The image processing apparatus according to claim 1, further comprising a projection unit configured to display a plurality of images corresponding to the plurality of input images. Receiving means for receiving an adjustment instruction for adjusting a setting value relating to at least one image quality among a plurality of input images;
When the accepting unit accepts an adjustment instruction for increasing the set value related to the image quality of the first input image among the plurality of input images, the set value of the first input image has reached a predetermined upper limit value. In addition, when the set value of another input image among the plurality of input images does not reach a predetermined lower limit value, the set value of the first input image is changed in response to acceptance of the adjustment instruction. Without lowering the setting value of the other input image,
  When the accepting unit accepts an adjustment instruction for increasing the set value related to the image quality of the first input image among the plurality of input images, the set value of the first input image has reached the predetermined upper limit value. If there is not, the control unit increases the setting value of the first input image in response to accepting the adjustment instruction, and does not change the setting value of the other input image among the plurality of input images. An image processing apparatus. When the receiving unit receives an adjustment instruction for lowering a setting value related to the image quality of the first input image among the plurality of input images, the control unit sets the setting value of the first input image to the predetermined value. When the set value of the other input image among the plurality of input images does not reach the predetermined upper limit value, the first instruction is received in response to acceptance of the adjustment instruction. The image processing apparatus according to claim 12, wherein the setting value of the other input image is increased without changing the setting value of the input image. The control means has a maximum set value of each of the plurality of input images after adjustment by the adjustment instruction received by the reception means that is higher than the predetermined upper limit value, and the adjustment after the adjustment by the adjustment instruction When a minimum value of each set value of a plurality of input images is higher than the predetermined lower limit value, a predetermined value is subtracted from each of the set values of the plurality of input images after adjustment by the adjustment instruction, The image processing apparatus according to claim 12 or 13. An image processing method performed by an image processing apparatus,
A reception step of receiving an adjustment instruction for adjusting a setting value related to at least one image quality among a plurality of input images;
In the case where an adjustment instruction for increasing the setting value related to the image quality of the first input image among the plurality of input images is received, the setting value of the first input image has reached a predetermined upper limit, and If the setting value of the second input image among the plurality of input images does not reach a predetermined lower limit value, the setting value of the first input image is not changed in response to accepting the adjustment instruction, And while lowering the setting value of the second input image,
  When an adjustment instruction for increasing the setting value related to the image quality of the first input image among the plurality of input images is received, the setting value of the first input image does not reach the predetermined upper limit value And a control step of increasing the set value of the first input image in response to receiving the adjustment instruction and not changing the set value of the second input image among the plurality of input images. An image processing method characterized by the above. In the case where an adjustment instruction for lowering the setting value related to the image quality of the first input image among the plurality of input images is received, the setting value of the first input image has reached the predetermined lower limit, and When the set value of the other input image among the plurality of input images does not reach the predetermined upper limit value, in response to accepting the adjustment instruction, in the control step, the relevant value of the first input image The image processing method according to claim 15, wherein the setting value is not changed and the setting value of the other input image is increased. The maximum set value of each of the plurality of input images after adjustment by the adjustment instruction received in the reception step is higher than the predetermined upper limit value, and the plurality of input images after adjustment by the adjustment instruction When the minimum value of each set value is higher than the predetermined lower limit value, a predetermined value is subtracted from each of the set values of the plurality of input images adjusted by the adjustment instruction in the control step. The image processing method according to claim 15 or 16. A program for causing a computer to operate as the image processing apparatus according to any one of claims 1 to 14 .

Images