keremcant
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Hi, I am trying to create some Gaussian distributions and put them on an image. The Gaussians have randomly created parameter (amplitude, position and standard deviation). First I put the parameters into vectors or matrices, then I am using ngrid() function to get a 2d space to create the Gaussians, however i get an error (since possibly mathematical operations with ngrid values is not trivial...). The error is:
and the code is here:
What can i do to fix this situation?
Thanks in advance
Code:
??? Error using ==> minus
Integers can only be combined
with integers of the same class,
or scalar doubles.
Error in ==> ss_gauss_fit at 23
gauss = amp(i)*
exp(-((x-xc).^2 +
(y-yc).^2)./(2*std(i)));
and the code is here:
Code:
clear all;
image = uint8(zeros([300 300]));
imsize=size(image);
noOfGauss=10;
maxAmpGauss=160;
stdMax=15;
stdMin=3;
for i=1:noOfGauss
posn(:,:,i)=[ uint8(imsize(1)*rand()) uint8(imsize(2)*rand()) ];
std(i)=stdMin+uint8((stdMax-stdMin)*rand());
amp(i)= uint8(rand()* maxAmpGauss);
end
% draw the gaussians on blank image
for i=1:noOfGauss
[x,y] = ndgrid(1:imsize(1), 1:imsize(2));
xc = posn(1,1,i);
yc = posn(1,2,i);
gauss = amp(i)* exp(-((x-xc).^2 + (y-yc).^2)./(2*std(i)));
image = image + gauss;
end
Thanks in advance