Hi,
Two questions about making video streams better suited for encoding with mpeg2enc:
Question 1:
When encoding video material to MPEG2 using mpeg2enc, it seems that you can always reduce the required bitrate by using
yuvdenoise -f
at the end of the processing chain, even when the video looks so clean that denoising seems totally unnecessary. It does not seem to have any negative impact on image detail (Does it?). Is it always a Good Thing to use yuvdenoise as some sort of numerical conditioner before feeding the stream to mpeg2enc, no matter the image cleanness? Are there any cases where using 'yuvdenoise -f' is not advisable?
Question 2:
Is there any way to denoise the chroma channel, and have the denoise strength depend on the luma channel? It seems that humans are unsensitive to subtle chroma changes when the luma is very low (maybe also when it is very high?), so you could perform more aggressive filtering in those area's, saving bits for encoding.
Cheers,
Dik
------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
