IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

• US 20200134882A1
• Filed: 10/22/2019
• Published: 04/30/2020
• Est. Priority Date: 10/26/2018
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Sato, Masahiro, Urabe, Hirofumi
• Granted Patent: US 11,315,290 B2
• Time in Patent Office: Days
• CPC Class Codes: G06T 11/001 Texturing; Colouring; Generation of texture or colour inpainting G06T5/77
• CPC Class Codes: G06T 2207/20208 High dynamic range [HDR] image processing
• CPC Class Codes: G06T 5/20 using local operators
• CPC Class Codes: G06T 5/92 based on global image properties
• CPC Class Codes: G06T 7/90 Determination of colour characteristics

Abstract

An image processing apparatus according to the present invention includes at least one memory and at least one processor Which function as: a setting unit configured to he capable of setting any of a plurality of processing modes which include a first processing mode to display an image having a first brightness range and a second processing mode to display an image having a second brightness range which is narrower than the first brightness range and a processing unit configured to generate frame image data, which is a display target, in a first state in which image processing in accordance with a currently set processing mode is performed, and generates a capture image data corresponding to the frame image data in a second state after changing the first state in accordance with the currently set processing mode.

Claims

1. An image processing apparatus comprising at least one memory and at least one processor which function as:

a setting unit configured to be capable of setting any of a plurality of processing modes which include a first processing mode to display an image having a first brightness range and a second processing mode to display an image having a second brightness range which is narrower than the first brightness range and

a processing unit configured to generate frame image data, which is a display target, in a first state in which image processing in accordance with a currently set processing mode is performed, and generates a capture image data corresponding to the frame image data in a second state after changing the first state in accordance with the currently set processing mode.

2. The image processing apparatus according to claim 1,

wherein the second state in a case where the second processing mode is set is a state of performing image processing to decrease each pixel value of the frame image data.

3. The image processing apparatus according to claim 2,

wherein the image processing to decrease each pixel value of the frame image data is image processing to decrease each pixel value of the frame image data using a gain value that is smaller as a maximum brightness or an upper limit brightness of image data, which corresponds to the frame image data and has a brightness range that is wider than the second brightness range, is higher.

4. The image processing apparatus according to claim 2,

wherein the image processing to decrease each pixel value of the frame image data is image processing to decrease each pixel value of the frame image data using a gain value that is smaller as an upper limit display brightness of a display apparatus, which displays an image based on the frame image data, is lower.

5. The image processing apparatus according to claim 4,

wherein the second state in a case where the first processing mode is set is also a state of performing the image processing to decrease each pixel value of the frame image data.

6. The image processing apparatus according to claim 1,

wherein the second state in a case where the first processing mode is set is a state of not performing image processing to convert a brightness range into the first brightness range.

7. The image processing apparatus according to claim 1,

wherein the setting unit is further capable of setting any of a plurality of brightness ranges as the first brightness range,

wherein the second state in a case where the first processing mode is set is a state of performing image processing to convert a brightness range into a predetermined brightness range.

8. The image processing apparatus according to claim 1,

wherein the processing unit generates first capture image data corresponding to the frame image data in the first state and generates second capture image data corresponding to the frame image data in the second state.

9. The image processing apparatus according to claim 1, wherein

in a case where the first processing mode is set,

the processing unit generates second capture image data in a second state after changing the first state in accordance with the first processing mode,

the setting unit sets the second processing mode, and

the processing unit generates third capture image data in a second state after changing the first state in accordance with the second processing anode.

10. The image processing apparatus according to claim 1, wherein

in a case where a plurality of frame image data exist as the display target,

the setting unit is capable of independently setting a processing mode for each of the plurality of frame image data, and

the processing unit independently sets the second state for each of the plurality of frame image data.

11. The image processing apparatus according to claim 1,

wherein the setting unit is capable of independently setting a processing mode for each of a plurality of areas in an image expressed by the frame image data,

wherein the processing unit independently sets the second state for each of the plurality of areas.

12. The image processing apparatus according to claim 1,

wherein the plurality of processing modes include a third processing mode to display an image having the first brightness range in a first area on the display surface, and display an image having the second brightness range in a second area on a display surface,

wherein in a case where the third processing mode is set, the processing unit sets a second state, which is a state after changing the first state in accordance with the first processing mode, with respect to the first area, and sets a second state which is a state after changing the first state in accordance with the second processing mode, with respect to the second area.

13. The image processing apparatus according to claim 1, wherein the image processing apparatus is a display apparatus configured to display an image based on the frame image data.

14. The image processing apparatus according to claim 1,

wherein the first brightness range is a high dynamic range (HDR), and the second brightness range is a standard dynamic range (SDR).

15. An image processing method comprising:

setting any of a plurality of processing modes which include a first processing mode to display an image having a first brightness range and a second processing mode to display an image having a second brightness range which is narrower than the first brightness range; and

generating frame image data, which is a display target, in a first state in which image processing in accordance with a currently set processing mode is performed, and generates a capture image data corresponding to the frame image data in a second state after changing the first state in accordance with the currently set processing mode.

16. A non-transitory computer readable medium that stores a program, wherein the program causes a computer to execute:

setting any of a plurality of processing modes which include a first processing mode to display an image having a first brightness range and a second processing mode to display an image having a second brightness range which is narrower than the first brightness range; and

generating frame image data, which is a display target, in a first state in which image processing in accordance with a currently set processing mode is performed, and generates a capture image data corresponding to the frame image data in a second state after changing the first state n accordance with the currently set processing mode.