I can now make clean plates, core mattes, combine keys, etc. However, in Natron, I haven’t found a way to correct edge colours after despilling either blue or green screens. I get either a very strong ( in the case of green) yellow border of varying luminace, but always annoying. I’ve improvised a few methods, but none of them feel practical. So, I must ask the community:
1) Could you suggest a workflow and method for colour correcting edge spill within Natron; and
2) Should I place an unpremult before colour correcting and then shade it with a premult? I ask this because I’m a bit confused at the presence of th (un)premult checkbox in various nodes (Grade and ColorCorrect, for example)
Any advice would be appreciated.