Image Mask filter on a group containing a source with Chroma Key or Luma Key filter results in dimmed colors · Issue #3903 · obsproject/obs-studio · GitHub
Use luma keys
HOW TO EDIT LUMA KEY VIDEO IN 2020 | TUTORIAL ANDROID | KINEMASTER | ALIGHT MOTION | PART 3 - YouTube
Kdenlive/Manual/Effects/Misc/lumakey - KDE UserBase Wiki