Subjective Comparison of DivX, XviD, x264 and WMV

The main quality parameter of codec is the subjective impressions of viewer during compressed video playback. So the main idea of subjective comparison methods is to evaluate visual quality of compressed sequences as the average opinion of experts (MOS, Mean Opinion Score).


During this comparison the following codecs were tested:

DivX 6.0

Xvid 1.1.0

x264

WMV 9.0

Bitrates:

690 kbps

1024 kbps

Number of sequences: 4


Number of experts: 50