Image processing apparatus, image processing method, and image processing system
AssigneeFuji Xerox Co., Ltd.
InventorsTakahide Inoue, Hitoshi Ogatsu, Ryousuke Higashikata
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Abstract
The invention provides an image processing apparatus having a device for inputting image data, a color distribution recognition device for recognizing a color distribution in a color space and position information in an image space of the image data input through the input device, and a device for determining one or more color reproduction parameters of the image data based on the color distribution and position information recognized by the color distribution recognition device and a color reproduction range of an output device.
Claims12
An image processing apparatus comprising:
- means for inputting image data,
- cluster preparation means for extracting areas on an image plane made up of similar color pixels based on the image data input through said input means and preparing clusters based on the extracted areas,
- cluster analysis means for recognizing color distributions of the clusters prepared by said cluster preparation means and preparing a group, and
- means for determining a color reproduction parameter of the image data for each of the clusters prepared by said cluster preparation means based on the group generated by said cluster analysis means and a color reproduction range of an output device.
An image processing apparatus comprising:
- means for inputting image data,
- one or more multi-dimensional color conversion tables for executing color conversion of the image data input through said input means based on preset lattice point data,
- cluster preparation means for extracting areas on an image space made up of similar color pixels based on the image data input through said input means and preparing clusters based on the extracted areas,
- cluster analysis means for recognizing color distributions of the clusters prepared by said cluster preparation means and preparing a group, and
- means for determining lattice point data for said one or more multi-dimensional color conversion tables based on the clusters prepared by said cluster preparation means, the group generated by said cluster analysis means, and a color reproduction range of an output device.
An image processing system comprising:
- an image input device for inputting color image data,
- an image processing apparatus for performing image processing for color image data input through said image input device, and
- an image output device for performing image processing for the color image data based on an image processing instruction given by said image processing apparatus and outputting a color image,
- wherein said image processing apparatus comprises:
- cluster preparation means for extracting areas on an image space made up of similar color pixels based on the color image data and preparing clusters based on the extracted areas,
- cluster analysis means for recognizing color distributions of the clusters prepared by said cluster preparation means and preparing a group, and
- means for determining a color reproduction parameter of the color image data based on the clusters prepared by said cluster preparation means, the group generated by said cluster analysis means, and a color reproduction range of said image output device, and
- wherein said image output device performs color conversion processing for the color image data based on the color reproduction parameter and the position information output from said image processing apparatus, and outputs a color image.
Dependencies are inferred from the claim text.