Hi, I had the same doubt but I managed to solved in this way:
- You have a picture, you can represent it like a matrix with imread.
- Weight * Height * Frame/second = Pixel/second
- Bits Per Pixel (BPP) = BitRate/(Pixel/Second).
That means, you can play with the value of BPP to obtain different's bitrates. Remember, in a image (and not in a video) you will only see a frame per second, son the time will be 1.
-------------------- But I did it in this way, i just play with the values of the compression ratio to obtain differents values of PSNR:
imwrite(iframe,'iframe.jp2','CompressionRatio',i,'mode','lossy');
When 'i' is the value that you put. I did a for i=1:100 and I obtained different values of PSNR. Remember for a higher Compression Ratio, lower PSNR you will obtained.
I hope this can be useful to you!
