Examples of high bit post on 8-bit video

Coursedesign wrote on 6/28/2005, 12:34 PM
Great actual examples of taking 8-bit media and processing them in 8-bit vs. higher bit depth (float in this case, but you can interpolate).

Good case for doing as much ordinary image tweaking within one color corrector FX as possible, as Vegas uses high bit depth internally for this but has to truncate to 8-bit on output.

If you do say Contrast & Brightness followed by CC, then you will get exactly what you see in these examples:

HD Colorist.

Comments

farss wrote on 6/28/2005, 3:36 PM
Of course you can stretch the example much further than that, go out to 14 bit and you've got a lot of room to push things around.
One has to ask why Vegas must truncate to 8 bits, letting us choose how many bits in the output would seem not only a more agnostic approach but also potentialy faster.
Bob.
GlennChan wrote on 6/28/2005, 5:11 PM
One has to ask why Vegas must truncate to 8 bits, letting us choose how many bits in the output would seem not only a more agnostic approach but also potentialy faster.
My guess is that it's because Vegas passes 8-bit RGB filter to filter.

Rendering in 16-bit integer or float or higher precision would be nice. However, it may take longer and filters need to be written to support that.