航测DCM影像常用融合方法对比分析

摘要

By using ENVI image processing system, applying color space transform respectively, ratio transformation and principal component transformation method, multi-spectral images and panchromatic band images gained by using aerial DCM camera have been fusioned. Using subjective analysis and quantitative comparison method, from the visual angle and the angle of statistical index, the advantages and disadvantages of 3 kinds of image fusion methods have been carried out respectively. It is regarded that color space transformation method has better effect. It will provide the basis for high DCM image enhancement processing.%借助ENVI图像处理系统，分别应用色彩空间变换、比值变换、主成分变换法，对利用航测DCM相机获取的多光谱影像和全色光波段影像进行融合，并利用主观分析和定量比较的方法，分别从视觉角度和统计指标角度对比分析了3种方法融合图像的优缺点，认为色彩空间变换方法效果较好，为DCM高分影像的增强处理提供了依据。