How to apply Gaussian filter for multiple frames/images instead of only one ?

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awa 2016-6-30

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评论： awa 2016-6-30

I want trying to apply a Gaussian filter between 200 images in MATLAB. I understand that for a spatial Gaussian filter, it filters on only one image/frame, how could I apply the Gaussian filter for multiple images/frames and for every pixels?

I thought out to define the images like this, but I'm not sure and I don't know what to do next.

img_array(:,:,1) = img1;

Could anyone give any suggestions on this problem ?

Thanks a lot.

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awa 2016-6-30

And I prefer the suggested solution is not using any built-in function so that I could understand more clearly.

Thank you.

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Answer 1

J Weijs 2016-6-30

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https://ww2.mathworks.cn/matlabcentral/answers/293120-how-to-apply-gaussian-filter-for-multiple-frames-images-instead-of-only-one#answer_227246

编辑：J Weijs 2016-6-30

在 MATLAB Online 中打开

Simply

img_array_filtered=imfilter(img_array,filter);

should work if your filter is 2D, in which case the filter will be applied to each image seperately. If you don't want to use built-in functions, you would have to write your own spatial convolution function, which isn't difficult starting from the mathematical definition of a convolution. It will be hard to produce a function that is as effcient as Matlab's built-in function though.