error : Index in position 3 exceeds array bounds (must not exceed 1).
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please help
I=imread('AFTER.tif');
[R C] = find(I(:,:,1)<100 & I(:,:,2)>0.2 & I(:,:,3)>10); error
imagesc(I)% a is the image
% rows and columns of area found by thresholding
n=randi([50 length(R)],1,300);%randomly generated indexes
r=R(n);c=C(n);% extraction of entries corresponding to randomly generated values in row and column vectors
for ii=1:length(n)
subpatch=I(r(ii)-75:r(ii)+75,c(ii)-75:c(ii)+75);%for patches of size 151 by 151
imwrite(subpatch,strcat('C:\Users\user\Documents\MATLAB\before\p',num2str(ii),'.tif') );
end
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Jan
on 2 Jul 2019
Does this mean, that the problem is solved?
"i have jus added find(I >100);" - but we do not know where you have added this.
Answers (1)
Rajani Mishra
on 18 Jul 2019
Edited: Rajani Mishra
on 18 Jul 2019
Hi,
I understand that you are facing the error – ‘Index in position 3 exceeds array bounds (must not exceed 1)’ while trying to access matrix ‘I’ used to store an image file.
Error exceeding array bounds is caused when you try to access an element out of matrix dimensions.
So before trying to access indices of matrix ‘I’ check whether it’s a RGB image or a grayscale image
as in case of grayscale image you should not have – ‘ I(:,:,3) or I(:,:2) ’.
To check whether it’s a RGB or grayscale image try :
st = imfinfo(filename);
st.ColorType
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