基于幅度统计多分辨率分析的SAR图像灰度压缩

Gray Compression of SAR Images Based on RMA

基于幅度统计多分辨率分析的原理 ,针对SAR图像特殊的显示要求 ,提出了一种新的灰度压缩方法 ,解决了常规灰度级压缩方法不能很好保持原始图像数据直方图分布的问题 实验结果表明该方法能有效保证灰度压缩前后图像数据直方图分布形状的一致性 。

According to the special principle of SAR(synthetic aperture radar) image display, and aiming at the problem in traditional gray compression methods that the outline of the original image's histogram cannot be well kept, the paper provides a new method of gray compression based on the theory of RMA(radiometric multiresolution analysis). The result of test on real SAR image shows that the new method is far superior in keeping the outline of the image’s histogram than that of traditional methods.