Color transforming method
AssigneeFuji Photo Film Co., Ltd.
InventorFumito Takemoto
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Abstract
The improved color transforming method of the invention comprises the steps of: performing calorimetric conversion on the image data obtained from an input medium to produce calorimetric data on the image to be reproduced; and analyzing the resulting calorimetric data to determine automatically a format for compressing the input space of said image to the output space. The color transforming method of the invention performs analysis of the image to be reproduced so that only the areas of the image that need be subjected to compression of a color gamut can be compressed, and thereby achieves optimal color gamut compression in an image-dependent manner with minimum sacrifice in the fidelity of calorimetric reproduction.
Claims8
A color transforming method comprising the steps of:
- performing calorimetric conversion on image data obtained from an input medium to produce calorimetric data on an image to be reproduced;
- creating rough data from a portion of the converted calorimetric data by extracting image data from all the image data of said image, and averaging the extracted image data for spatially throwing out a portion of the input image data;
- and
- analyzing the rough data to determine automatically a format for compressing an input space of said image to an output space, wherein said analyzing step determines a portion of a color space to be compressed.
Dependencies are inferred from the claim text.