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US 2010/0303346 A1Published application
Image processing unit, image processing method, imaging device
AssigneeRicoh Company, Ltd.
InventorHIROSHI SUITO
Life of this patent
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Abstract
An image processing unit is configured to include a monotone image generator which generates a monotone image from a color image and a color reducer which reduces a color of an image by reducing chroma of the image in accordance with brightness of the image. The color reducer adjusts a tone of the monotone image generated by the monotone image generator by reducing a color of a high brightness portion of the image at a higher level than a low brightness portion of the image.
Claims9
An image processing unit comprising:
- a monotone image generator which generates a monotone image from a color image;
- a color reducer which reduces a color of an image by reducing chroma of the image in accordance with brightness of the image, wherein
- the color reducer adjusts a tone of the monotone image generated by the monotone image generator by reducing a color of a high brightness portion of the image at a higher level than a low brightness portion of the image.
An image processing method comprising the steps of:
- generating a monotone image from a color image;
- and
- reducing a color of an image by reducing chroma of the image in accordance with brightness of the image, wherein
- in the color reducing step, a tone of the monotone image generated in the monotone image generating step is adjusted by reducing a color of a high brightness portion of the image at a higher level than a low brightness portion of the image.
1 more element
An imaging device comprising
- an image processing unit which comprises a monotone image generator which generates a monotone image from a color image, and a color reducer which reduces a color of an image by reducing chroma of the image in accordance with brightness of the image, wherein the color reducer adjusts a tone of the monotone image generated by the monotone image generator by reducing a color of a high brightness portion of the image at a higher level than a low brightness portion of the image.
Dependencies are inferred from the claim text.