图像处理 包括特技显示百叶窗，马赛克，栅格，图片缩放；像素运算：线性变换，阈值变换，灰度拉伸，窗口变换，小波变换，傅里叶变换；图像复原：逆滤波复原，维纳复原，等类PS图像处理技术-Image processing including special shutters, mosaic, grid, pictures, zoom pixel operations: linear transformation, threshold transform, gray stretch the windo