图像消噪是图像预处理的主要任务之一，其作用是为了提高图像的信噪比，突出图像的期望特征。本函数利用小波变换消除噪声，具有较好的实验结果。-Image denoising is one of the main tasks of image pre-processing, its role is to enhance the image signal to noise ratio, highlighting the expectations of the image features. This fu