>>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.
Technically speaking, 16 _is_ pure black and 235 _is_ pure white--the
0-15 and 236-255 ranges are left unused to allow for "overshoot" as a
result of encoding, editing, etc.--and if your video player is giving you
different (washed-out) shades then it's broken. To work around this, use
the "levels" filter:
-J levels=input=16-235:output=0-255
but beware that your colors will look oversaturated (very bright or very
dark shades will all become the same color) when viewed with a properly
working video player.
--Andrew Church
[EMAIL PROTECTED]
http://achurch.org/
