Image processing apparatus, image processing method, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorToshihisa Miyake
Life of this patent
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Abstract
An image processing apparatus determines an achromatic region position based on an achromatic region detected in first image data obtained by image capturing, and calculates a color correction parameter used for performing color correction processing on second image data obtained by image capturing performed later than that of the first image data, wherein the color correction parameter is calculated based on color information about a position in the second image data corresponding to the determined achromatic region position.
Claims15
An image processing apparatus that processes image data obtained by image capturing, the image processing apparatus comprising:
- one or more memories;
- one or more processors or circuitry configured to function as following units:
- a determination unit configured to determine an achromatic region position based on an achromatic region detected in first image data obtained by the image capturing;
- a storing unit configured to store the achromatic region position determined by the determination unit in the one or more memories;
- and
- a calculation unit configured to calculate a color correction parameter used for performing color correction processing on second image data obtained by image capturing performed later than that of the first image data,
- wherein the calculation unit calculates the color correction parameter based on color information about a position in the second image data corresponding to the achromatic region position stored in the one or more memories.
A control method for an image processing apparatus that processes image data obtained by image capturing, the control method comprising:
- determining an achromatic region position based on an achromatic region detected in first image data obtained by the image capturing;
- storing the determined achromatic region position in one or more memories;
- and
- calculating a color correction parameter used for performing color correction processing on second image data obtained by image capturing performed later than that of the first image data,
- wherein the color correction parameter is calculated based on color information about a position in the second image data corresponding to the determined achromatic region position stored in the one or more memories.
A non-transitory computer-readable storage medium storing a program for causing a computer to execute following steps comprising:
- determining an achromatic region position based on an achromatic region detected in first image data obtained by the image capturing;
- storing the determined achromatic region position in one or more memories;
- and
- calculating a color correction parameter used for performing color correction processing on second image data obtained by image capturing performed later than that of the first image data,
- wherein the color correction parameter is calculated based on color information about a position in the second image data corresponding to the determined achromatic region position stored in the one or more memories.
Dependencies are inferred from the claim text.