Image data generating method, image data generating apparatus, and image forming system
AssigneeRicoh Company, Ltd.
InventorManabu KOMATSU
Life of this patent
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Abstract
An image data generating method of generating an image from a document includes acquiring, based on light reflected by the document, a first image signal corresponding to a plurality of components in a plurality of visible wavelength ranges and a component having a reflection absorption characteristic in an invisible wavelength range, converting the first image signal into a second image signal including a plurality of device-independent color space components and a black component, and generating image data based on the second image signal.
Claims10
An image data generating method of generating an image from a document, the image data generating method comprising:
- acquiring, based on light reflected by the document, a first image signal corresponding to a plurality of components in a plurality of visible wavelength ranges and a component having a reflection absorption characteristic in an invisible wavelength range;
- converting the first image signal into a second image signal including a plurality of device-independent color space components and a black component;
- and
- generating image data based on the second image signal.
An image data generating apparatus comprising circuitry to
- acquire, based on light reflected by a document, a first image signal corresponding to a plurality of components in a plurality of visible wavelength ranges and a component having a reflection absorption characteristic in an invisible wavelength range,
- convert the first image signal into a second image signal including a plurality of device-independent color space components and a black component;
- and
- generate image data based on the second image signal.
An image forming system comprising:
- a reading unit to
- receive light beams in a plurality of visible wavelength ranges and a light beam in an invisible wavelength range, each of the light beams being reflected by a document, and
- output a first image signal including a plurality of signals generated through photoelectric conversion on the received light beams in the plurality of visible wavelength ranges and a signal generated through photoelectric conversion on the received light beam in the invisible wavelength range;
- an image forming unit to form an image with a combination of a plurality of colors;
- and
- circuitry to
- acquire the first image signal,
- convert the first image signal into a second image signal including a plurality of device-independent color space components and a black component,
- convert the plurality of device-independent color space components included in the second image signal into a plurality of color components to be included in image data for the image forming unit;
- and
- generate the image data for the image forming unit based on the plurality of color components to be included in the image data and the black component included in the second image signal.
Dependencies are inferred from the claim text.