压缩解压

开发平台：

Matlab

frequency.m：源码内容

							function f=frequency(vector)
%         if ~isa(vecor,'uint8')
%             error('input argument must be a uint8 vector');
%         end
        f=repmat(0,1,256);
        len=length(vector);
        for index=0:255
            f(index+1)=sum(vector==uint8(index));
        end
        f=f./len;

						