Establishing Of Input Value Of Digital Printing And Developing Of Application Software

The color of printing image needs to be transformed among different equipments in copy system, and that how to get the dot area of each primary color (namely each separate plate) is difficult in the color printing . This paper deals with the transformation mostly from "XYZ" color space to"CMY" color space.As well as,because in the actual pinting the used equipments and the printing materials are different, how to get correctly input value of dot and reproduce accurately the color of original according to different produce condition is a difficult problem at present, which is also the research target of this paper.This paper firstly described several color spaces and their respective characters and discussed several ways used for the transformation from"XYZ" color space to "CMY" color space, and then analysed many kindsof factors that influence the calculated dot area aiming at the shortage of existing transformation, introduced "three channels" theory, based on this theory, the new model of color space transformation from "XYZ" color space to "CMY" color space was established. In order to verify the accuracy of the transformation model, the paper made experimental verification. The result shows that the transformation model has satisfied accuracy and gains expected effect.Finally, the paper developed application software with myselfCharacteristic whose name is "My Photoshop" , the theory results of thispaper were applied to this software, and realized the function that"Establishing Profile According to Production Condition" , this softwarehas practical value.