PNSR formula psnr=20.0* (log10(255/sqrt(mse)));

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Faizullah khan 2019-5-30

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https://ww2.mathworks.cn/matlabcentral/answers/464851-pnsr-formula-psnr-20-0-log10-255-sqrt-mse

评论： Murugan C 2019-6-3

采纳的回答： Murugan C

Can we type the formula like this: psnr=20.0* (log10(1/sqrt(mse)));

I mean can we write 1 intstead of 255.

Plz explain.

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Murugan C 2019-5-31

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https://ww2.mathworks.cn/matlabcentral/answers/464851-pnsr-formula-psnr-20-0-log10-255-sqrt-mse#answer_377311

Hi Faizullah

We can use 1 instead of 255, if your input image is logical (max pixel range is 1 ) or your image is uint8 then you should use maximum of image pixel range is 255.

Refer-PNSR Link

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Faizullah khan 2019-6-2

Plz Explain that for weighted median filter 1 will be ok or 255?. Image is lena.tif.

Thanks & Regards

Murugan C 2019-6-3

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Hi,

PSNR shoud be more than 100. Please find max value from your output image and use it as below

psnr= 10.0* (log10((max(max(output_img))/sqrt(mse)));

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