Doom9's Forum - View Single Post - New Custom Quantization Matrices - EQM AVC Series. Last update: EQM AVC-HR 2005-08-01

Sharktooth · 9th September 2005, 13:06

Well, limitedsharpen may be the cause. Sharpen filters usually lower the source compressibility in a significative manner. In this situation a lower bitrate matrix is needed but you can try rising the deblocking filter threshold by 1 or 2 to help compensate the compressibility loss.
However i dont use colormatrix coz i never experienced darkened or desaturated encodes so IMHO it's not a "tuning" problem.

9th September 2005, 13:06	#13 \| Link
Sharktooth Mr. Sandman Join Date: Sep 2003 Location: Haddonfield, IL Posts: 11,768	Well, limitedsharpen may be the cause. Sharpen filters usually lower the source compressibility in a significative manner. In this situation a lower bitrate matrix is needed but you can try rising the deblocking filter threshold by 1 or 2 to help compensate the compressibility loss. However i dont use colormatrix coz i never experienced darkened or desaturated encodes so IMHO it's not a "tuning" problem. __________________ MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!!