Video Quality Analysis

Things scrubbed from Internet so far:

• Python recipe for evaluating PSNR metric of two YUV420 frames
• Fast image comparison with Python
  
• Video quality analysis
• tiny_psnr.c: part of FFMPEG
  

I hope the links won't disappear before I can use them. To use the second Python program, I had to install Python Imaging Library and Python Levenshtein.

# yum install python-imaging python-Levenshtein

The Levenshtein distance is a string metric for measuring the amount of difference between two sequences (Wikipedia).