Method for building LCD colors characterizing segment and space division model

Abstract

This invention discloses one method to establish LCD color property section space module, which comprises the following steps: the module divides the display drive values space into three sub spaces according to the drive value color property and channel interference properties and characterizes the display color according to the sub spaces different property. Through space dividing, it effectively reduces the inconstant quality and independent channel color property accuracy.

Description

technical field [0001] The invention relates to a display device in a modern digital image color management system, in particular to a method for constructing a liquid crystal display color characterization segmented and spaced model. Background technique [0002] With the development of computer and multimedia technology, digital image devices such as scanners, digital cameras, monitors and color printers have been widely used in industrial production and daily life, but people are also affected by the benefits of digital image devices. It solves the problem of distortion when color transmission between different devices. The traditional color management system represented by CEPS (Color Electronic Prepress Systems) uses a closed-loop method to manage colors. With the openness and networking of color management, this color management system is increasingly unable to meet need. In order to solve the problem of inconsistent color transmission of different digital image devi...

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Problems solved by technology

[0004] The color characterization model of the traditional cathode ray tube display is based on the assumption that the display satisfies chromaticity invariance and channel independence. Since the cathode ray tube display has a development history of several decades and the manufacturing process is relatively mature, most of the cathode Ray tube displays can meet these two assumptions, so simple models such as GOG (Gain Offset Gama) can be used to characterize the display well. However, the development history of liquid crystal displays is relatively short, and the technology is not very mature. , especially the luminous mechanism and characteristics are very different from cathode ray tube displays. Most liquid crystal displays cannot satisfy the two assumptions of channel independence and chromaticity constancy. Therefore, if you simply use GOG, etc. Model to characterize this display, the model prediction accuracy is relatively low

[0005] At present, there are few simple and practical LCD color characterization models, and some even need to establish a three-dimensional lookup table of LCD device driving values ​​RGB and CIE1931XYZ, which requires a large amount of measurement data, which is time-consuming and increases the storage of the color management system space, unable to meet needs

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