nm2ind.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 [ind1,ind2]=nm2ind(nm1,nm2)
%NM2IND - Converts the matrix indexes into coordinates (nm).
%
%	[IND1,IND2]=NM2IND(NM1,NM2)
%
%	NMs are the vectors of the x-y indexes espressed in nm;
%	INDs are the vector of the x-y matrixes indexes.
%
%	See also IND2NM
%
%	Claudio Apr 15, 1995
%

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

global I H

ss=scansize(H);
xoff = xoffset(H);
yoff = yoffset(H);
px=size(I,1);

ind1=ceil((nm1-xoff)*px/ss);
ind2=ceil((nm2-yoff)*px/ss);

return