# US 2018/0025700 A1 · Image processing apparatus and display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0025700 A1 - Document ID: US20180025700A1 - Status: Published application - Kind: A1 - Application number: 15/651,078 - Filed: 2017-07-17 - Published: 2018-01-25 - Earliest claimed: 2016-07-22 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Yasuo Suzuki; Masaharu Yamagishi - Web page: https://patentgrep.com/patent/US20180025700A1 ## CPC - G09G 5/02: characterised by the way in which colour is displayed {(details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607)} - G06T 5/92: based on global image properties - G09G 3/3406: {Control of illumination source (illumination devices structurally associated with liquid crystal cells G02F1/1336)} - G09G 5/026: {Control of mixing and/or overlay of colours in general (G09G5/022 and G09G5/024 take precedence)} - G09G 5/14: Display of multiple viewports - G06T 2207/20208: High dynamic range [HDR] image processing - G09G 2320/0626: for control of overall brightness - G09G 2320/0673: for control of gamma adjustment, e.g. selecting another gamma curve - G09G 2330/021: Power management, e.g. power saving - G09G 2330/045: Protection against panel overheating - G09G 2360/16: Calculation or use of calculated indices related to luminance levels in display data - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## Abstract An image processing apparatus according to the present invention, includes: a determining unit configured to determine a parameter to be used in predetermined image processing in accordance with an operation that is performed by a user after an image based on target image data is displayed on a display unit; a generating unit configured to generate processed image data by applying the predetermined image processing using the parameter to the target image data; an acquiring unit configured to acquire brightness information related to a correspondence relationship between a display brightness of the display unit and a brightness of the processed image data; and a recording unit configured to record, in a storage unit, the processed image data and the brightness information. ## Claims ### Claim 1 An image processing apparatus, comprising: a determining unit configured to determine a parameter to be used in predetermined image processing in accordance with an operation that is performed by a user after an image based on target image data is displayed on a display unit; a generating unit configured to generate processed image data by applying the predetermined image processing using the parameter determined by the determining unit to the target image data; an acquiring unit configured to acquire brightness information related to a correspondence relationship between a display brightness of the display unit and a brightness of the processed image data; and a recording unit configured to record, in a storage unit, the processed image data generated by the generating unit and the brightness information acquired by the acquiring unit. ### Claim 2 (depends on 1) The image processing apparatus according to claim 1, wherein the brightness information indicates at least any of an upper limit of the display brightness, a lower limit of the display brightness, a type of change in the display brightness with respect to a change in the brightness of the processed image data, and a correspondence relationship between a brightness characteristic value of the processed image data and a range of the display brightness. ### Claim 3 (depends on 2) The image processing apparatus according to claim 2, wherein the type is: a type in which the display brightness changes linearly with respect to a change in the brightness of the processed image data; or a type in which a same display brightness as a brightness of the processed image data within a range of the display brightness corresponds to the brightness of the processed image data and the upper limit or the lower limit of the display brightness corresponds to a brightness of the processed image data outside of the range of the display brightness. ### Claim 4 (depends on 1) The image processing apparatus according to claim 1, wherein the recording unit records the processed image data and the brightness information in the storage unit in association with each other. ### Claim 5 (depends on 1) The image processing apparatus according to claim 1, wherein the recording unit: generates brightness converted image data by converting the brightness of the processed image data into a same brightness as the display brightness based on the brightness information; and records the brightness converted image data in the storage unit. ### Claim 6 (depends on 1) The image processing apparatus according to claim 1, wherein the display unit is a display apparatus which is separate from the image processing apparatus, the display apparatus: acquires the processed image data; and generates brightness converted image data by converting the brightness of the processed image data into a same brightness as the display brightness, and the recording unit: acquires the brightness converted image data from the display apparatus; and records the acquired brightness converted image data in the storage unit. ### Claim 7 (depends on 1) The image processing apparatus according to claim 1, wherein the correspondence relationship between the display brightness and the brightness of the processed image data is dependent on a brightness characteristic value of the processed image data, and the brightness information is information generated based on the brightness characteristic value of the processed image data. ### Claim 8 (depends on 2) The image processing apparatus according to claim 2, wherein the brightness characteristic value is an average brightness of the processed image data. ### Claim 9 A display apparatus, comprising: a determining unit configured to determine, based on a brightness characteristic value of input image data, a correspondence relationship between a display brightness of a display unit and a brightness of the input image data; the display unit configured to display an image based on the input image data in accordance with the correspondence relationship determined by the determining unit; and an outputting unit configured to output brightness information related to the correspondence relationship determined by the determining unit, to the display unit or to the outside. ### Claim 10 (depends on 9) The display apparatus according to claim 9, wherein the determining unit determines an upper limit of the display brightness in accordance with the brightness characteristic value. ### Claim 11 (depends on 9) The display apparatus according to claim 9, further comprising a combining unit configured to generating combined image data by combining graphic image data on the input image data, wherein the determining unit determines a correspondence relationship between the display brightness and a brightness of the combined image data based on a brightness characteristic value of the combined image data generated by the combining unit, and the display unit displays an image based on the combined image data. ### Claim 12 (depends on 9) The display apparatus according to claim 9, wherein the brightness characteristic value is an average brightness of the input image data. ### Claim 13 An image processing apparatus, comprising: a first acquiring unit configured to acquire moving image data; a second acquiring unit configured to acquire, for each frame of the moving image data acquired by the first acquiring unit, brightness information related to a first correspondence relationship that is a correspondence relationship between a display brightness of a first display unit and a brightness of the moving image data; a third acquiring unit configured to acquire, for each frame, a brightness characteristic value of the moving image data from the moving image data; a determining unit configured to determine, for each frame, a second correspondence relationship that is a correspondence relationship between a display brightness of a second display unit and the brightness of the moving image data based on the brightness characteristic value acquired by the third acquiring unit; a fourth acquiring unit configured to acquire, for each frame, a result of a determination on whether or not the second display unit is capable of displaying an image based on the moving image data with a same display brightness as the display brightness of the first display unit; and a correcting unit configured to correct, for each frame, the second correspondence relationship based on the result of the determination so that a manner of change in the second correspondence relationship between the frames approaches a manner of change in the first correspondence relationship between the frames. ### Claim 14 (depends on 13) The image processing apparatus according to claim 13, wherein the fourth acquiring unit determines, based on the second correspondence relationship determined by the determining unit and the brightness information acquired by the second acquiring unit, whether or not the second display unit is capable of displaying an image based on the moving image data with a same display brightness as the display brightness of the first display unit. ### Claim 15 (depends on 13) The image processing apparatus according to claim 13, wherein the correcting unit corrects, with respect to a frame for which the second display unit is determined to be capable of displaying an image based on the moving image data with a same display brightness as the display brightness of the first display unit, the second correspondence relationship so that the second correspondence relationship approximately matches the first correspondence relationship. ### Claim 16 (depends on 13) The image processing apparatus according to claim 13, wherein a first upper limit that is an upper limit of the display brightness of the first display unit and a second upper limit that is an upper limit of the display brightness of the second display unit are dependent on the brightness characteristic value, and the correcting unit corrects the second correspondence relationship so that a manner of change in the second upper limit with respect to a change in the brightness characteristic value approaches a manner of change in the first upper limit with respect to the change in the brightness characteristic value. ### Claim 17 (depends on 13) The image processing apparatus according to claim 13, wherein the third acquiring unit acquires, for each frame, at least any of an average brightness of the moving image data, a histogram of the brightness of the moving image data, and a histogram of a brightness difference from another frame. ### Claim 18 (depends on 13) The image processing apparatus according to claim 13, further comprising a boost unit capable of executing a boost process of increasing a display brightness of at least a part of a screen of the second display unit from a display brightness in accordance with the second correspondence relationship after a correction by the correcting unit. ### Claim 19 An image processing method, comprising: a determining step of determining a parameter to be used in predetermined image processing in accordance with an operation that is performed by a user after an image based on target image data is displayed on a display unit; a generating step of generating processed image data by applying the predetermined image processing using the parameter determined by the determining step to the target image data; an acquiring step of acquiring brightness information related to a correspondence relationship between a display brightness of the display unit and a brightness of the processed image data; and a recording step of recording, in a storage unit, the processed image data generated by the generating step and the brightness information acquired by the acquiring step. ### Claim 20 A method for controlling a display apparatus having a display unit configured to display an image based on input image data, the method comprising: a determining step of determining, based on a brightness characteristic value of the input image data, a correspondence relationship between a display brightness of the display unit and a brightness of the input image data; and an outputting step of outputting brightness information related to the correspondence relationship determined by the determining step, to the display unit or to the outside, wherein the display unit displays the image based on the input image data in accordance with the correspondence relationship determined by the determining step. ### Claim 21 An image processing method, comprising: a first acquiring step of acquiring moving image data; a second acquiring step of acquiring, for each frame of the moving image data acquired by the first acquiring step, brightness information related to a first correspondence relationship that is a correspondence relationship between a display brightness of a first display unit and a brightness of the moving image data; a third acquiring step of acquiring, for each frame, a brightness characteristic value of the moving image data from the moving image data; a determining step of determining, for each frame, a second correspondence relationship that is a correspondence relationship between a display brightness of a second display unit and the brightness of the moving image data based on the brightness characteristic value acquired by the third acquiring step; a fourth acquiring step of acquiring, for each frame, a result of a determination on whether or not the second display unit is capable of displaying an image based on the moving image data with a same display brightness as the display brightness of the first display unit; and a correcting step of correcting, for each frame, the second correspondence relationship based on the result of the determination so that a manner of change in the second correspondence relationship between the frames approaches a manner of change in the first correspondence relationship between the frames.