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how to find MSE (mean_squared_error) of a GIF file and APNG file

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anup pandey
anup pandey 2021-9-27
编辑： DGM 2021-9-27
I need to find MSE value to compare GIfs and APNG image quality. But I can't seem to find a way to do it anywhere on the internet. Please help me
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DGM
DGM 2021-9-27
编辑：DGM 2021-9-27
If you have a reference image, you can use immse() or ssim() or psnr(), depending on what your goals are
https://www.mathworks.com/help/images/ref/immse.html
https://www.mathworks.com/help/images/ref/psnr.html
https://www.mathworks.com/help/images/ref/ssim.html
Since you're mentioning APNG, I'm assuming you're talking about multiframe GIF files. I should also point out that if the following bugs are still present in your version, you may possibly not be able to correctly read multiframe GIF files:
https://www.mathworks.com/matlabcentral/answers/654298-nonsensical-imread-behavior-with-multiframe-gifs-in-r2019b
https://www.mathworks.com/matlabcentral/answers/893347-is-there-a-bug-in-imread-or-imfinfo-with-multiframe-gifs-in-r2021a-b
I don't know about issues reading APNG...

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