该程序包包含若干滤波算法，主要是小波滤波和FFT滤波算法-The program packet includes some arithmetics of filtering, which mainly are wavelet and fft filter methods.

小波包与图像边缘检测。小波包分解后得到图像序列有近似部分和细节部分组成，近似部分是原始图像对高频部分进行滤波所得的近似表示-Wavelet packet and image edge detection. Wavelet packet decomposition get image sequence is approximate part and detail parts, approximate part is the original image of the high frequency