Apparatus and method for performing enhancement processing on 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 image processing apparatus configured to generate black image data from input image data and output the black image data to a printer, the image processing apparatus comprising:
- a controller having one or more processors which execute instructions stored in one or more memories, the controller being configured to:
- acquire color information and attribute information included in the input image data;
- include attribute information about enhancement processing in attribute information about a pixel of interest in the input image data on the basis that the color information of the pixel of interest satisfies a first condition;
- perform the enhancement processing on the color information in a case where the attribute information about the pixel of interest satisfies a second condition;
- and
- replace the color information on which the enhancement processing is performed with the black image data.
A method for controlling an image processing apparatus configured to generate black image data from input image data and output the black image data to a printer, the method comprising:
- acquiring color information and attribute information included in the input image data;
- including attribute information about enhancement processing in attribute information about a pixel of interest in the input image data on the basis that the color information of the pixel of interest satisfies a first condition;
- performing the enhancement processing on the color information in a case where the attribute information about the pixel of interest satisfies a second condition;
- and
- replacing the color information on which the enhancement processing is performed with the black image data.
A non-transitory computer-readable storage medium, which stores a computer program for causing a computer to execute a method for controlling an image processing apparatus configured to generate black image data from input image data and output the black image data to a printer, the method comprising:
- acquiring color information and attribute information included in the input image data;
- including attribute information about enhancement processing in attribute information about a pixel of interest in the input image data on the basis that the color information of the pixel of interest satisfies a first condition;
- performing the enhancement processing on the color information in a case where the attribute information about the pixel of interest satisfies a second condition;
- and
- replacing the color information on which the enhancement processing is performed with the black image data.
Dependencies are inferred from the claim text.