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KAE
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How is image downsized when "Image is too big to fit on screen"?

Asked by KAE
on 19 Mar 2018
Latest activity Commented on by KAE
on 20 Mar 2018
When displaying an image in imshow, I get the error that "Image is too big to fit on screen; displaying at 67%" and I notice Moire patterns in the resulting image. I'd like to know how the image is downsized to display at reduced size. Is it subsampled, or something else?

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1 Answer

Answer by Steve Eddins on 20 Mar 2018
 Accepted Answer

Nearest-neighbor interpolation.

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Thanks so much! This page has a nice demo of how nearest neighbor (and other downsampling algorithms) can introduce Moire, while some filtering beforehand can prevent it.

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