基于升余弦滚降滤波器算法的伪彩色图像增强

Pseudo Color Enhancement Based on Raised Cosine Roll-off Filter Algorithm

针对各种途径获取的数据图像细节模糊、低分辨率问题,采用非线性变换算法进行伪彩色化处理可显著提高图像的视觉阅读性和专业判读。基于升余弦滚降特性,并利用Matlab GUI设计的图像伪彩色增强处理系统,能够实时调节RGB三色通道参数,实现了各种图像的伪彩色增强。实验证明在图像变换中采用余弦滤波能够取得较好的增强效果,图像细节及特征区域在伪彩色图像中表现较为完美。

Aiming at the details of fuzzy and low resolution in various images, pseudo color processing can significantly improve the visual reading and professional interpretation of images using nonlinear transform algorithm. By using Matlab GUI, the pseudo color enhancement processing system based on Raised Cosine is designed. Here RGB channel parameters can be adjusted in real time, so pseudo color enhancement came true for many kinds of images. Better pseudo color effects are showed by using the cosine filtering in the experiments. The details of color images and the region characteristics are more perfect.