Apparatus and control method for enhancement based on achromatic signal value replacing pixel color information
AssigneeCanon Kabushiki Kaisha
InventorKimimori Eguchi
Life of this patent
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Abstract
An apparatus configured to generate image data represented in achromatic color from input image data and output the generated image data to a printer includes a controller. The controller is configured to replace color information of an object included in the input image data with an achromatic signal value, determine, based on an achromatic signal value corresponding to color information of a pixel of interest in the input image data, whether the pixel of interest satisfies a predetermined condition, and perform enhancement processing on the color information of the pixel of interest in a case where the pixel of interest is determined not to satisfy the predetermined condition.
Claims20
An apparatus configured to generate image data represented in achromatic color from input image data and output the generated image data to a printer, the apparatus comprising:
- a controller having one or more processors which execute instructions stored in one or more memories, the controller being configured to:
- replace color information of an object included in the input image data with an achromatic signal value;
- determine, based on an achromatic signal value corresponding to color information of a pixel of interest in the input image data, whether the pixel of interest satisfies a predetermined condition;
- and
- perform enhancement processing on the color information of the pixel of interest in a case where the pixel of interest is determined not to satisfy the predetermined condition.
A method for controlling an apparatus configured to generate image data represented in achromatic color from input image data and output the generated image data to a printer, the method comprising:
- replacing color information of an object included in the input image data with an achromatic signal value;
- determining, based on an achromatic signal value corresponding to color information of a pixel of interest in the input image data, whether the pixel of interest satisfies a predetermined condition;
- and
- performing enhancement processing on the color information of the pixel of interest in a case where the pixel of interest is determined not to satisfy the predetermined condition.
Dependencies are inferred from the claim text.