真彩色图象显示技术处理方法

A New Method for Reproducing the Real Colour lmage

本文详细地描述了真彩色图象再现技术以及基色数据压缩的处理方法。通常，从数据采集系统获取的图象信号具有相当丰富的彩色种类和灰度层次，在通用微机上重现原始图象时，其色彩与灰度层次将受到微机显示系统配置的限制，需要对图象原始数据作压缩处理，线性压缩法是一种常见的方法，但它忽略了原始数据的特点。本文提出的颜色领域压缩法是在对原始数据进行概率统计的基础上，考虑人眼的视觉特性，提出的一种新方法。

Anew method of reproducing the real colour image together with the process ofcompressing the trichromatic units was described in detail.As a rule,the image signals fromdata acquisation system must be accompanied with considerable varieties of colours and greyscales,When images reproduced in current computer′s screen,the hue and grey scale are usu-ally restrained by the configuration of the computer.It should be essentially in need of furthercompressing the original data of the image.The common linear compression method has beenfound overlooking the characteristics of the original data.The newly proposed method makesup this shortcoming by means of compressing the colour regions based on the principles ofprobalitistic method and man′s visual perception.[