二维去噪，基于小波的MATLAB应用程序，且去噪效果良好-Two-dimensional denoising, based on wavelet application in MATLAB, and the denoising effect is good

未使用matlab小波函数实现图像的二维小波分解和重构，分解和重构结果有对比-Matlab wavelet function is not used to achieve a two-dimensional image wavelet decomposition and reconstruction, decomposition and reconstruction contrasting results

小波变换和二维最大类间方差法实现变化检测-Wavelet transform and two-dimensional maximum between class variance method to achieve change detection

二维离散小波变换 只能处理长宽一样的方形图像，灰度和彩色图像都可，要用其他图像只需把Lena.bmp改为其他图像，但图像要保存在m文件所在路径下。-Can only deal with the same length and width of the square image, grayscale and color images can be used to use other images only need to change Lena.bmp other images, but th