how to calculate PSNR value ?

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Sivakrishna
Sivakrishna 2012-9-23
评论： Anu Sri 2018-9-28
hi
i need help for calculating PSNR value for two different size images
original image = 256 * 256
output image = 511 * 511
can anyone suggest how to calculate PSNR value for above images
  2 个评论
Wayne King
Wayne King 2012-9-23
Can you say if you're using a lifting transform, why the reconstructed image approximation is not 512x512?
Sivakrishna
Sivakrishna 2012-9-23
if the source image is m*n
then the super resolution reconstructed image is 2m-1*2n-1

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回答（2 个）

Image Analyst
Image Analyst 2012-9-23
What if you just used imresize() on one of them? And then did the usual PSRN formula. Would that work for your purposes?
  2 个评论
Sivakrishna
Sivakrishna 2012-9-23
编辑：Sivakrishna 2012-9-23
hi image analyst,
if i resize the image i will lost reconstructed image information?
suggest better way to find PSNR values for above images
Image Analyst
Image Analyst 2012-9-23
Make your reference image bigger to match the size of your super resolution image.

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sandra viaña borja
编辑：Image Analyst 2018-7-9
Sivakrishna Did you find how to calculate PSNR between an original image and the super resolution constructed one?
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Anu Sri
Anu Sri 2018-9-28
it worked,thankyou!!

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