View Full Version : chroma shifted
Terka
25th November 2007, 19:45
i realized, that my camcorder records wrong:
its most visible in fast moving objects after deinterlace to 50p:
separatefields()
bicubicresize(720,576)
or bob, or whatever other deinterlace (50p) can see following:
frames 1+2,2+3,3+4,.. have SAME chroma
is it possible to move the chroma to right place?
maybee comparing to luma?
redfordxx
25th November 2007, 23:25
can you upload a screenshots?
scharfis_brain
25th November 2007, 23:38
@Terka: provide an UNPROCESSED video sample.
(use virtualdub in direct stream copy mode to cut out a scene)
Terka
26th November 2007, 09:38
one file i already posted:
http://www.mytempdir.com/2047066
but the behaviour is not much visible there because there is few
motion in the scene (you can see the chroma shift on the baloon).
But i have one scene where its obvious. Ill put it as soon as i get home. my camcorder is panasonic nv-mx8. maybee here are some other users of it?
Terka
26th November 2007, 19:05
the file is here:
http://www.mytempdir.com/2068681
scharfis_brain
26th November 2007, 19:32
the file decodes fine here. no temporal chroma mess here.
it seems the decoder that you use is b0rked.
Terka
26th November 2007, 20:17
yes, you are right! thank a lot!
i thought i have Cedocida installed. So i used now DVCSwitch.exe and it showed me only MS-DV codec, no possibility to change to Cedocida. So i installed panasonic DV codec and its ok. How can i force Cedocida to be the default codec? In VDub i can choose it.
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