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[WM]: Benchmark



I need some help with stirmark 4. My marking system uses grayscale images (.pgm). I transformed to .ppm, then put the images at set1
directory.
Then StirMark created some images called image_PSNR_0, image_PSNR_10, ..., image_PSNR_100. What is the meaning of this atack PSNR ?
Is it an atack ?
Thanks for the atention.

 Felipe Aquino.

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 felipe@lps.ufrj.br
 LPS  - Laboratorio de Processamento de Sinais  UFRJ - Universidade Federal do Rio de Janeiro  Rio de Janeiro, Brasil.
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