图像的小波去噪,给灰度图像加上一定量的高斯噪声,再采用小波变换的方法去噪,计算去噪前后图像的PSNR。-Wavelet Denoising images to grayscale images coupled with a certain amount of Gaussian noise, and then using the method of wavelet transform denoising calculated before and after denoising images PS

Eective image compression requires a non-expansive discrete wavelet transform (DWT) be employed consequently, image border extension is a critical issue. Ideally, the image border extension method should not introduce distortion under compressio