Paper
Retinex Scheme — RS Image Enhancement
- Authors:
- Liao Xiao-yu; Fu Wei
- Abstract
- As remote sensing images can be used to identify features and interpret ground conditions, they have been widely used in many fields from environment resources investigation to military operation. However, 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), is introduced. This enhancement technique is effective especially for images with poor visibility or low resolution. In this study, several classic image enhancement techniques, say, histogram equalization, are also introduced. 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.
- Keywords
- Remote sensing image; Image enhancement; MSR; Poor visibility; Visual contrast
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