1.图像频域处理正交变换的matlab实例 2.含有的频域变换内容如下： 正交变换通用算子 傅立叶变换 傅立叶变换的原理 傅立叶性质 二维离散傅立叶变换（ 2DDFT ） 快速傅立叶变换（ FFT ） 傅立叶变换的研究与应用 离散余弦变换 DCT 变换矩阵 dct2 函数和 dctmtx 函数 Walsh- Hadamard 变换 Radon 变换 -1. Image processing orthogonal freq

It shows what a jpeg compression is all about. the function implements the DCT transform, using a matrix operator. note that matlab has a function for the DCT and iDCT transforms that might be more efficient. -It shows what a jpeg compres

The Haar transform can be expressed in the matrix form as T = HIHT (inverse transform HTTH) where I is an NxN image matrix, H is an NxN transformation matrix and T is the resulting NxN transform. For Haar transform, the transformation matrix H c