Patent ID: 6546132
Filing Date: 2003-04-08
Classification: G06K,H04N

Abstract:
An image processing apparatus for improving text reproduction for an image input by an input device and output by an output device, comprising:an input device that receives said image; a first three-dimensional look up table that receives color information representing said image from said input device and transforms colors specified in an input device color space into colors in a device-independent color space; a second three-dimensional look up table that receives colors from said first three-dimensional look up table and transforms colors specified in a device-independent color space into colors in an output device first color space; a third three-dimensional look up table that receives text colors from said second three-dimensional look up table and transforms text colors specified in said output device first color space into text colors in an output device second color space; a fourth three-dimensional look up table that receives image colors from said second three-dimensional look up table and transforms image colors specified in said output device first color space into image colors in said output device second color space; a splice unit that receives text colors in said output device second color space from said third three-dimensional look up table and image colors in said output device second color space from said fourth three-dimensional look up table and outputs a combination output color in said output device second color space; and an output device that receives color information representing said images specified in said output device second color space and outputs said image.