I have a folder of 20 images that I need to shrink down to the size of the smallest image.

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Taylor C
Taylor C 2017-2-27
评论： Vandana Rajan 2017-2-27
Hello.
I have a folder of 20 images that I need to shrink down to the size of the smallest image (smallest of those 20 in the folder). I am not allowed to to use "imresize" or "imcrop" and I am having a lot of trouble with it. The smallest image is 127 x 129. Please help!
Thank you!

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回答（2 个）

Vandana Rajan
Vandana Rajan 2017-2-27
编辑：Walter Roberson 2017-2-27
Hi,
You may try implementing some image resampling techniques. The same algorithm can be used for shrinking as well as enlarging an image by using proper scale factors and pixel locations. A quick search gave me the following useful links
1. https://clouard.users.greyc.fr/Pantheon/experiments/rescaling/index-en.html
2. http://stackoverflow.com/questions/26142288/resize-an-image-with-bilinear-interpolation-without-imresize
Walter Roberson
Walter Roberson 2017-2-27
One approach
ifft2( fft( fft( TheImage, TargetRows, 2), TargetColumns ) )

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