Remote Sensing Image Enhancement Based on Multi-Scale Retinex Algorithm
Lu Y · Computer Technology and Development · 2008
As most of the remote sensing images have little visual contrast and poor resolution,thus,the remote sensing image enhancement technique is almost always applied before the remote sensing images are analyzed.Numerous image enhancement techniques are available.In this study,a novel image enhancement technique,multi-scale Retinex(MSR) algorithm,is introduced.This enhancement technique is effective especially for images with poor visibility or low resolution.Therefore this technique is very suitable for enhancing remote sensing images.Besides,several classic image enhancement techniques,say,histogram equalization,are also introduced in this study.To illustrate the effectiveness and superiority of the MSR technique on remote sensing image enhancement,the technique is compared with these classic enhancement techniques by enhancing a remote sensing image with poor visibility and little visual contrast.The results show that MSR technique is satisfying and superior over the other enhancement techniques.