IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM
First Claim
Patent Images
1. An image processing apparatus comprising:
- an image acquisition unit configured to acquire image data;
a brightness acquisition unit configured to acquire at least one of first brightness information relating to brightness of the image data and second brightness information relating to ambient brightness of a display area in which an image can be displayed based on the image data;
a control unit configured to control contrast of the image data acquired by the image acquisition unit, based on the brightness information acquired by the brightness acquisition unit; and
a display control unit configured to display an image based on the image data whose contrast has been controlled by the control unit.
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Abstract
An image processing apparatus can correct the influence of contrast caused by a difference between a photopic vision and a scotopic vision to provide an image excellent in image quality. An averaged within-visual-field luminance calculation unit calculates a luminance value in the visual field based on at least one of environmental luminance in the visual field and luminance in a screen on which image data can be displayed. A reverse gamma conversion processing unit corrects the contrast of the image data based on the obtained luminance value in the visual field.
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Citations
19 Claims
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1. An image processing apparatus comprising:
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an image acquisition unit configured to acquire image data; a brightness acquisition unit configured to acquire at least one of first brightness information relating to brightness of the image data and second brightness information relating to ambient brightness of a display area in which an image can be displayed based on the image data; a control unit configured to control contrast of the image data acquired by the image acquisition unit, based on the brightness information acquired by the brightness acquisition unit; and a display control unit configured to display an image based on the image data whose contrast has been controlled by the control unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for causing an image processing apparatus to perform image processing, the method comprising:
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acquiring image data; acquiring at least one of first brightness information relating to brightness of the image data and second brightness information relating to ambient brightness of a display area in which an image can be displayed based on the image data; controlling contrast of the acquired image data based on the acquired brightness information; and displaying an image based on the image data whose contrast has been controlled. - View Dependent Claims (11, 12, 13, 14)
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15. A storage medium storing a computer-readable program that causes a computer to perform a method comprising:
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acquiring image data; acquiring at least one of first brightness information relating to brightness of the image data and second brightness information relating to ambient brightness of a display area in which an image can be displayed based on the image data; controlling contrast of the acquired image data based on the acquired brightness information; and displaying an image based on the image data whose contrast has been controlled. - View Dependent Claims (16, 17, 18, 19)
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Specification