func_readraw.m

SPIHT的MATLAB源代码,希望对有需要的朋友有所帮助.

function result = func_ReadRaw(filename,nRow,nColumn)
% Matlab implementation of SPIHT (without Arithmatic coding stage)
%
% Read a RAW format gray scale image from disk
%
% input:    filename : input file
%           nSize : size of the output image
%           nRow : row of the output image
%           nColumn : column of the output image
%
% output:   result : output data in matrix format

fid = fopen(filename,'rb');
if (fid==1)
   error('Cannot open image file...press CTRL-C to exit ');pause
end

nSize=nRow*nColumn;
temp = fread(fid, nSize, 'int32');
% temp = fread(fid, nSize, 'uchar');
% temp=imread(filename);

temp=double(temp);
fclose(fid);
% result = reshape(temp, [nRow nColumn])';
result = reshape(temp, [nColumn nRow])';
% result=double(temp);