红外图像对比度增强的小波域广义交叉确认法

Infrared image contrast enhancement with generalized cross validation in wavelet domain

对红外图像进行平稳小波变换,分辨率较好的各高频子带直接去噪;分辨率较差的各高频子带用非完全贝塔变换法结合去噪进行增强。实验表明,本文提出的方法在有效地增强红外图像对比度的同时,又能很好地抑制红外图像中白噪声。

After making discrete stationary wavelet transform to an infrared image, noise was reduced in the high frequency sub-bands in the better resolution levels. Enhancement was done by combining de-noising method with in-complete Beta transform in the high frequency sub-bands in the worse resolution levels. Experimental results show that new method can effectively reduce white noise and while it also well enhances the contrast of infrared image.