I found this thread from over 3 years ago:
>Hi All,
>Hopefully this is an easy question. I having problems finding the answer in
>the docs or list archive.
>I'm using dvgrab to capture video, then using transcode to convert to Divx.
>But, I'm unable to find a filter to convert the DV black levels (16-235) to
>"normal" (0-255). Black is coming out dark grey (16) and white is light grey
>(235). I'd prefer 'true' black (0) and white (255). TMPGEnc calls this "Output
>YUV in Basic YCbCr, not CCIR601" (DV), but I don't know of a transcode
>equivalent.
>Is it possible convert the black levels with a transcode filter, or should I
>be capturing differently with dvgrab?
>Could someone point me in the right direction?
>Thanks, (btw, transcode is awesome).
>Mario
I now have the same question. There was no answer back then. That thread turned
into a discussion about
whether you should do it or not. I think that some video I have is 16-235 and
it looks washed out on a
computer screen. Is there a filter to convert either the source our output
video to 0-255? Or does anyone
know of a utility that will tell me what the black / white levels are in the
source video file?
thanks,
Bob
