visceralpsyche
08-07-2006, 08:32 AM
I am colour grading my second short film right now and am running into the problem of using 4:2:0 footage from the camera (JVC GY-HD101E), captured at 1280x720x25p.
Having edited the film in PPro 2, and now trying to grade it in AE7, the problem occurs that when applying a vignette filter to the footage it results in pretty obvious (to my eyes anyway) banding issues, like there isn't enough colour channel bit depth to generate a smooth transition.
Now, I know that this is of course the issue with using 4:2:0 footage. My question is, is there a way to internally upsample the footage prior to exporting it to 4:4:4 (for example) so that colour grading it doesn't lead to banding issues like those described?
Or another way to ask the question would be, how do I take footage shot via HDV MPEG2 and convert it to a higher bit depth across all channels, so that subsequent editing etc is as lossless as possible from there on in? I know the limitations of the original capture can't be overcome, but beyond that I don't want to suffer further degradation such as the banding that is showing up on gradient filters, vignettes etc.
Thanks!
Having edited the film in PPro 2, and now trying to grade it in AE7, the problem occurs that when applying a vignette filter to the footage it results in pretty obvious (to my eyes anyway) banding issues, like there isn't enough colour channel bit depth to generate a smooth transition.
Now, I know that this is of course the issue with using 4:2:0 footage. My question is, is there a way to internally upsample the footage prior to exporting it to 4:4:4 (for example) so that colour grading it doesn't lead to banding issues like those described?
Or another way to ask the question would be, how do I take footage shot via HDV MPEG2 and convert it to a higher bit depth across all channels, so that subsequent editing etc is as lossless as possible from there on in? I know the limitations of the original capture can't be overcome, but beyond that I don't want to suffer further degradation such as the banding that is showing up on gradient filters, vignettes etc.
Thanks!