数字图像设备色度特征化建模软件研究

彩色图像在数字图像设备之间的传输和复制过程中,为保证其色彩还原的准确性和一致性,必须实施色彩管理,而色彩管理的核心技术之一就是对数字图像设备进行色度特征化.在研究了数字图像设备色度特征化的原理和方法的基础上,基于多项式回归法,建立了数字图像的设备色度值RGB与CIE标准颜色空间色度值CIE Lab之间的非线性关系;并通过Matlab软件编程,设计一种数字图像设备色度特征化的快速建模软件.实验结果表明,应用该软件可实现设备色度值RGB与标准颜色空间色度值CIE Lab的快速精确转换.

Colorimetric Characterization Modeling Software for Digital Imaging Device

During the process of transmission and duplication of color images among the digital imaging devices,it is necessary to use color management to ensure the accuracy and the consistency of color restoration.One of the key technologies of color management is colorimetric characterization for digital imaging devices.According to the principle of colorimetric characterization of digital imaging device,the non-linear relationship between the RGB of digital imaging device and the CIE Lab of standard colorimetry value is established by means of polynomial regression method.Meanwhile,under Matlab software programming,a fast modeling software has been designed for colorimetric characterization of digital image processing devices.The experimental result shows that the software could realize a fast and precise conversion from RGB colorimetry value to the CIE Lab standard colorimetry value.