detcoef2 提取二微小波分解高频系数 appcoef2 提取二维小波分解低频系数 wthresh 进行软阈值或硬阈值处理 wthcoef2 二维信号的小波系数阈值处理 ddencmp 获取在消噪或压缩过程中的默认值阈值-detcoef2 from two high-frequency micro-wave decomposition coefficient appcoef2 extract 2D wavelet decomposition low-frequency coefficient

这是基于小波分析的matlab程序，主要用于图像压缩处理，希望对大家有帮助。-This is based on the wavelet analysis matlab procedure, mainly uses in image compression processing, hoped that has the help to everybody.