Following last week mails due to my poor results Here is what I am aiming at for the telecine, from various inputs, mostly Steven Schultz and Steven Boswell, thanks for their time and patience (they should get an annual award of some sort)
I am using the default values (e.g nothing behind it). however 1/ Reduced G to 10, q values where constantly "sky rocketing" after a 10~12 frames. 2/ Brought up a bit the -q to 3 instead of 1 then 2. 3/ -K Hi-res 4/ the usual -D 10 -R 0 5/ no yudenoise at all. Default values of yuvdenoise where blurring the all lot despite keeping q around 2 to 3 for -q 2 6/ y4mspatialfilter default values before mpeg2enc pipe 7/ boosted -r to 20 8/ set -b to 9000 I still have to test y4mdenoise properly, but values of -t 1 -z 1 seems far too high. Need to learn more about its parameters. With this values peak and average bit rate are 9000 and 8000 respectively However I did downscale my big frames with pnmtoy4m | yuvdenoise -r 16 -l 2 -F | y4mscaler -O option cubic | y4munsharp The option cubic seems important when using a Bayer filter, otherwise some pattern (Edge sens in my case) will ring a lot (see the y4mscaler page) Next steps : A/ include y4mdenoiser with proper values and learn the new yuvdenoise, make to compare both of them B/ Modify yuvflip to make a yuvswap C/ Use the new yuvmotion from Jerome With ABC I will be able to avoid the DV stage hence very likely to improve quality Thanks a lot to all again Cheers E ------------------------------------------------------- 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