How to add 10dB or 30 dB noise to an image?

I want to add noises in an image so that the resulting PSNR becomes 10dB or 30 dB?

How can I add noise of specified PSNR to an image?

Answer 1

[Yatin]

Hey,

You can try using the "awgn" function. http://www.mathworks.com/help/comm/ref/awgn.html?searchHighlight=awgn

Also the following links might be useful:

http://www.gaussianwaves.com/2010/02/generating-a-signal-waveform-with-required-snr-in-matlab-2/

http://www.dsprelated.com/showcode/263.php.