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View Full Version : @scharfi: sample clips


Boulder
6th November 2004, 16:23
(your PM inbox was full :D )

Here are some samples you asked :

http://www.cc.jyu.fi/~camneely/python_1.mpv
http://www.cc.jyu.fi/~camneely/python_2.mpv
http://www.cc.jyu.fi/~camneely/python_3.mpv
http://www.cc.jyu.fi/~camneely/python_4.mpv
http://www.cc.jyu.fi/~camneely/python_5.mpv

They were cut from the original VOBs with MPEG-VCR. I tried to find as much motion as possible, but there are very few spots with a good amount.

scharfis_brain
6th November 2004, 18:18
all those clips are 25fps-FILM-based.

this means they are restorable using

restore24(a,b,1250,2997)

could you please post a 50fps-VIDEO based sample with mostly linear motion?

Thanks.

Boulder
6th November 2004, 18:35
I'll have to dig some more, will take till tomorrow though:(

Boulder
6th November 2004, 19:08
Well, I managed to find this clip : http://www.cc.jyu.fi/~camneely/python.mpv . It has some amount of fast motion, the problem with the Pythons is that the video based shots are usually something like a scene in a TV studio and that way. So it's mostly talking heads and not much motion.

I hope this clip helps you. Looks like I'll have to treat the episodes in small sections, using Restore24 for the progressive parts and something else for the interlaced ones. Uh-oh:D

Btw, I never thought about using Restore24, the name of the function is to blame;)

scharfis_brain
6th November 2004, 21:13
the approach of unblending 60i to 50i isn't working for now.
I have strang problems with luma & chroma (it flickers all the time)

so, I suggest you this method:


mpeg2source("python.d2v")

x=kernelbob(order=1)

#blend two NTSC-fields together (50:50 blend)
a=x.trim(1,0).mergeluma(x,0.5).mergechroma(x,0.5)

#blend three NTSC field together (25:50:25 blend)
b1=x.deleteframe(0).mergeluma(x.duplicateframe(0),0.5).mergechroma(x.duplicateframe(0),0.5)
b=b1.mergeluma(x,0.5).mergechroma(x,0.5)

#concat them
interleave(b,a)

#blindly select them, to get progressive 25 fps
changefps(25)

its blending will eliminate every deinterlacing flicker.
the movements are smooth (at least, what you can expect from 25fps)

for the film-contents, choose the restore24(a,b,1250,2997) method

Boulder
7th November 2004, 09:21
Once again, thanks a lot!

I'll probably have the time to start the whole project near Christmas time, but I'll test the approach on one episode to see how it looks on the TV.

Hopefully this information will be useful to someone else as well:)