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jpeg2k2im.m in imageprocessing.rar

			
function x = jpeg2k2im(y)
%JPEG2K2IM Decodes an IM2JPEG2K compressed image.
%   X = JPEG2K2IM(Y) decodes compressed image Y, reconstructing an
%   approximation of the original image X.  Y is an encoding
%   structure returned by IM2JPEG2K. 
%
%   See also IM2JPEG2K.

%   Copyright 2002-2004 R. C. Gonzalez, R. E. Woods, & S. L. Eddins
%   Digital Image Processing Using MATLAB, Prentice-Hall, 2004
%   $Revision: 1.4 $  $Date: 2003/10/26 18:39:40 $

error(nargchk(1, 1, nargin));       % Check input arguments

% Get decoding parameters: scale, quantization vector, run-length
% table size, zero run code, end-of-data code, wavelet bookkeeping
% array, and run-length table.
n = double(y.n);
q = double(y.q) / 100;
runs = double(y.runs);
rlen = length(runs);
zrc = -double(y.zrc);
eoc = zrc - 1;
s = double(y.s);
s = reshape(s, n + 2, 2);

% Compute the size of the wavelet transform.
cl = prod(s(1, :));
for i = 2:n + 1
   cl = cl + 3 * prod(s			

			...
			...
			... to be continued.

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