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Color Problems?
Hy to all…
I’m creating a video with After Effects in pal format, color setting 8bit, working space “none”.
I export the video using quicktime “uncompressed” and the video looks great as created in After Effects. Then I have to convert it to dv to burn on a dvd and… it became a nightmare cause most color change, there is a lot of banding in some areas… and I hate it…
can anyone tell me how to delete banding and other problemas that the conversion to dv or other low quality format create?
Have I to set another color setting or color space or anything else to create the video?
Another question, is dv only 8bit? Can I create a video in 16 or 32 bit and be sure that all that I see will remain when exported in dv format?
thanks a lot to spend some time helping me…
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7 Replies
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DV as a format is 8bit. To reduce banding, add some Noise to the affected areas – approximately 2-4% should do the trick.
Why are you going from uncompressed to DV for the DVD? Is it a client request or space limitations?
Cheers
RoRKbroadcastGEMs.com – the leader in customizable royalty-free animated backdrops
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thanks for reply! 🙂
I’m going from uncompressed to dv cause It’s the way I learned to create a dvd video. I’m explaning:
– I export my video uncompressed cause it gives to me all the quality that I need
– I create a dv (progressive) from the uncompressed
– I put the dv in dv studio pro and burn a dvd videoIs this the right way to do? Is there another way, maybe better? Am I loosing quality with this process? Have I to convert the uncompressed video in another format to mantain more quality?
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you should be able to maintain better quality if you can convert the uncompressed file to mpeg-2 and burn that to dvd. mpeg-2 is what will be encoded on the dvd, so you are currently compressing twice, once to dv, then again to mpeg-2.
Kevin Camp
Senior Designer
KCPQ, KMYQ & KRCW -
Uncompressed is the highest quality you can get. A better workflow for you would be to go uncompressed from AE and use that uncompressed in DV Studio Pro.
When you add DV into the workflow you lose a lot of quality.
Your current workflow –
Uncompressed>DV>MPEG2 introduces an unnecessary step and actually introduces artefacts.You should have much better quality going from uncompressed straight into MPEG2 (DV Studio Pro). Take note that banding may still occur after DV Studio Pro converts the uncompressed stream into MPEG2. If this happens, add Effect>Noise (2-4%).
HTH
RoRKbroadcastGEMs.com – the leader in customizable royalty-free animated backdrops
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thanks to all…
I have a question… are there no differences if I create an 8bit/16bit/32bit movie if the destination is a dvd video?
And… have I to create a composition in After effects assigning a color space? Maybe pal or something similar? srgb?
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[Alessandro Barzaghi] “I have a question… are there no differences if I create an 8bit/16bit/32bit movie if the destination is a dvd video?”
32bit is overkill but 16bit may help. It depends if you have lots of gradients and glows which are more susceptible to banding under 8bit.
So, yeah, if you can handle the additional rendering time required to work with 16bit then go for it. Take note that you can switch from 16 to 8 at any point in time. Use this to check if you need 16bit.[Alessandro Barzaghi] “And… have I to create a composition in After effects assigning a color space? Maybe pal or something similar? srgb?”
This is with regards ot color management which is related but quite different from bit-rate settings for your RGB image. Honestly, I don’t use AE’s color management system so I can’t say anything on that other than the fact that I use the default settings.
HTH
RoRKbroadcastGEMs.com – the leader in customizable royalty-free animated backdrops
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Thanks to all, now it’s more clear…
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