copyimage.m

matlab处理图像的一些基本方法。其中有一部分mex程序需要安装编译

function cimg=copyimage
%COPYIMAGE  Copy from a specified position in the current image an area, 
%		defined with the mouse, to the global variable CutPaste.
%
% Claudio 28 Sept. 1995
%

%
% Copyright (c) 1995 by Claudio Rivetti and Mark Young
% [e-mail],    [e-mail]
%

global H I CutPaste;

if nargin>0
  error('Too many input arguments.');
end

if ~isimage
  setviewmode('TOPVIEW');
  showimage;
end

[qq, rect]=imcrop;

ss=scansize(H);
px=size(I,1);
rect(1)=rect(1)-xoffset(H);
rect(2)=rect(2)-yoffset(H);
rect=rect*px/ss;
rect=round(rect);
CutPaste=I(rect(2):rect(2)+rect(4), rect(1):rect(1)+rect(3));

set(findobj('tag', 'PASTEITEM'), 'Enable', onoff(~isempty(CutPaste)));

if nargout == 1
cimg=CutPaste;
end
	
return;