Filters help

[Epsilon85]

Hello,
Is there a tutorial explaining the use of the following filters:
Alpha channel: view
Alpha channel: adjusted
Chromakey: advanced
Thank you for your help

[sauron]

There is documentation for Alpha Channel Adjust.

Alpha Channel: Adjust

[image] This filter adjusts the alpha channel in a number of ways. Mode works in conjunction with Amount. The modes primarily affect the edges of the alpha channel, which is very helpful for chroma keying. It is cascadable, so for example one can do a soft shrink first and then threshold, which gives a slightly different result than a hard shrink. No Change Shave tries to remove the “hairy” stuff, and also shrinks the selection a bit. Shrink Hard The “hard” operations introduce no new va…

Nothing yet for Alpha Channel View and Chroma Key.

[Epsilon85]

Hello and thank you for your explanations, I must admit that they are complex for my knowledge of videos and photos.

[RilosVideos]

Honestly, i can understand your problems
I am used to alpha channels and masking as i worked a lot with Photoshop and 3d animation software that used masking and alpha channels. Its all more or less the same for different purpose as i understand it. It all tries to mask you special parts of a video and let other information through. Masking normally is done with black/white masks, the black blocks the information to go through. This can be vice versa by settings in the filter! The chroma key makes it more variable: you can choose the color (including threshold) that should be blocked. This was typically used for green screen masking: a person was sitting in front of a green wall, that was easily distinguishable from everything else the person was wearing, including hair and so on. Some prefer a blue screen instead. It should be a high contrast from the screen color to everything relevant. You have to try the filters and get used to them to see what works best for your purpose

[Epsilon85]

Hello Rilos videos,
Thank you for your additional information, I will improve my knowledge in this area using the various GIMP masks.
Cordially.