calcquadtreesums.m

来自「beamlet变化的工具箱」· M 代码 · 共 27 行

%  CalcQuadTreeSums -- Calculate all sums over quadtree
%   Usage
%     SQ = CalcQuadTreeSums(image)
%   Inputs
%     image  n*n image, n dyadic
%   Outputs
%     SQ    (2*n-1,2*n-1) image
%   Description
%     if [i1,i2] = BWNode(s,b1,b2)
%     and [lo1,hi1,lo2,hi2] = rectbounds(s,b1,b2),
%     then SQ(i1,i2) = sum(image(lo1:hi1,lo2:hi2));
%   
%
%
% Part of BeamLab Version:200
% Built:Friday,23-Aug-2002 00:00:00
% This is Copyrighted Material
% For Copying permissions see COPYING.m
% Comments? e-mail [e-mail]
%
%
% Part of BeamLab Version:200
% Built:Saturday,14-Sep-2002 00:00:00
% This is Copyrighted Material
% For Copying permissions see COPYING.m
% Comments? e-mail [e-mail]
%