New and Better Image Fusion Method Based on Grey Relational Analysis and IHS Transform
基于灰色关联分析和IHS变换的图像融合算法

A better image fusion method was proposed based on grey relational analysis and IHS transform to fuse the TM multi-spectral image and high-resolution SAR image.Firstly,grey relational analysis was used to classify pixels in the SAR image into non-edge pixels and edge pixels.Secondly,by using IHS transform,component and SAR image were fused with different weighting strategies,whose weight for edge pixels was higher than that for non-edge pixels.The experimental result indicates that the new method is compact and able to resist noises better,and it enhances spatial detail information of the fusion image efficiently and preserves spectral information of the original TM image much better.