ksvd MATLAB代码

代码说明：

function [D,Gamma,err,gerr] = ksvd(params,varargin)%KSVD K-SVD dictionary training.%  [D,GAMMA] = KSVD(PARAMS) runs the K-SVD dictionary training algorithm on%  the specified set of signals, returning the trained dictionary D and the%  signal representation matrix GAMMA.%%  KSVD has two modes of operation: sparsity-based and error-based. For%  sparsity-based minimization, the optimization problem is given by%%      min  |X-D*GAMMA|_F^2      s.t.  |Gamma_i|_0