Steven M. Schultz wrote: > On Thu, 6 Jul 2006, [UTF-8] Bernhard Frühmesser wrote: > > >>I have been playing around a bit with the -m and -M option(s) but i am >>not sure what they are good for, if i use them i get some weird graphics > > > They are median filters. The -m is applied BEFORE the -t. The -M > is applied after the -t.
So they can be useful for what type of video? >>within the video, bit square dots and the whole picture look like >>painted (some kind of "oilpaint"). So -m and -M doesn´t look like i can > > I have not seen bit dots. But the "painted" effect is what > median filters can do to a picture. Probably not a good idea to > use both -m and -M. > > Median filtering is a "big hammer" - it can easily artifact, giving > things a flat look. For noisy color movies I might use something > like "yuvmedianfilter -t 0" but almost all of the time I do not > do any medianfiltering at all. I played around a bit with the video using the filters and then yuvplay at the end and not mpeg2enc and i realized that these "painted effects" don´t seem to come from any of the filters. But when i use mpeg2enc to create the video file i have these "painted effects", on my old box i have version 1.8.0 of mjpegtools installed and i did exactly the same command(s) there i don´t get these "painted effects" I try to get some screenshots out and put them online. I used mpeg2enc with -f 8 -D 10 -E 10 -q 5 -b 7800 -K tmpgenc - 4 1 -2 1 -o test.m2v Exactly the same cmd on the old box didn´t produce these "painted effects" in the video. Some bug in mpeg2enc maybe? >>I always used yuvdenoise -s 4,5,5 -g 64,255,255 -t 3,3,3 for really old >>VHS source matterial. I got some good quality with that options. > > > -s has been a NO-OP (do nothing) for quite a while. The option was > removed a day or so ago. OK. Cheers, BF. >>The DVD player is a bit old you know :-) >>It really doesn´t look good, so i need to deinterlace. > > > Ok. > > >>If i play the video directly from the notebook via TV cable on the TV it >>looks good, but the DVD with this old player i have got doesn´t look good > > > Hmmm, time for a new DVD player ;) > > Cheers, > Steven Schultz Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
