what is the maximum limit for psnr, means about what we can say that if value is less then this limit then it will be a bad psnr value and if value is greater then this limit then it will be good psnr value ?

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shameen khan
shameen khan 2015-5-27
评论： shameen khan 2015-5-27
what is the maximum limit for psnr, means about what we can say that if value is less then this limit then it will be a bad psnr value and if value is greater then this limit then it will be good psnr value ?

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Walter Roberson
Walter Roberson 2015-5-27
If you refer to the resource I pointed to in answering your previous question then you would see that the maximum PSNR is infinite. If there is no difference between two signals then their MSE will be 0 and when you divide by that 0 you will get infinity.
Typical PSNR for compression is listed in that resource. To repeat it, it was http://en.wikipedia.org/wiki/Peak_signal-to-noise_ratio

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