"Assignment has more non-singleton rhs dimensions than non-singleton subscripts" error

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XRYSANTHI 2016-10-3

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评论： dpb 2016-10-3

Any answer from you it will be priceless.

My images are 1701 from a highway (colored but i turn them in gray), where i am trying to do background substraction. % I have this code:

imgname = [imPath filesep filearray(1).name]; 
I = imread(imgname); 
I=rgb2gray(I);
VIDEO_WIDTH = size(I,2);
VIDEO_HEIGHT = size(I,1);
ImSeq = zeros(VIDEO_HEIGHT, VIDEO_WIDTH, NumImages);
for i=1:NumImages
    imgname = [imPath filesep filearray(i).name]; 
    ImSeq(:,:,i) = imread(imgname); 
end
disp(' ... OK!');

And in the ImSeq(:,:,i) line i am taking the "Assignment has more non-singleton rhs dimensions than non-singleton subscripts" error.

How can I fix it?

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XRYSANTHI 2016-10-3

Also, if i put all the images together i take (of course) Out Of Memory error.

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Answer 1

dpb 2016-10-3

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在 MATLAB Online 中打开

"...colored but i turn them in gray"

But you didn't do that in the loop where you try to build the array, only in the first block of code where it doesn't really matter as you do nothing with the result.

ImSeq(:,:,i) = rgb2gray(imread(imgname));

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XRYSANTHI 2016-10-3

Man,you are power.... I do not even thought that.. Problem solved!

dpb 2016-10-3

在 MATLAB Online 中打开

Not as hard as may seem...when you've seen the error enough, you know where to look--and it's not like there's much code here! :)

BTW, it's a nit but a nice MATLAB idiom is

ImSeq = zeros([size(I) NumImages]);

which eliminates the temporary variables. Note the [] to put the elements into a vector. It also illustrates the facility with Matlab to use output from function as input to another--very powerful.

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