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US 9,961,235 B2Granted
Image processing apparatus and image processing method in which color and monochrome images are distinguished
AssigneeCanon Kabushiki Kaisha
InventorHideo Sato
Life of this patent
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Abstract
An image processing apparatus determines whether each of pixels in a scanned image is a color pixel or a monochrome pixel, determines whether each of blocks including the multiple pixels in the scanned image is a color block or a monochrome block, based on determination results of the respective pixels, and determines that the scanned image is a color image in a case where an arrangement pattern of blocks determined to be color blocks matches a predetermined pattern.
Claims22
An image processing apparatus comprising:
- a controlling portion having a processor which executes instructions stored in a memory or having a circuitry, the controlling portion being configured to:
- obtain an image including a plurality of blocks, each of the blocks including a plurality of pixels;
- first determine whether each of the blocks is a color block or a monochrome block;
- and
- second determine whether the image is a color image or a monochrome image by comparing an arrangement of the determination result of color block and monochrome block with a predetermined pattern including at least color.
2 more elements
An image processing method to be executed in an image processing apparatus, the method comprising:
- an obtaining step of obtaining an image, the image including a plurality of blocks, each of the blocks including a plurality of pixels;
- a first determination step of determining whether each of the blocks is a color block or a monochrome block;
- and
- a second determination step of determining whether the image is a color image or a monochrome image by comparing an arrangement of the determination result of color block and monochrome block with a predetermined pattern including at least color.
1 more element
Dependencies are inferred from the claim text.