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I was thinking they were somehow controlling the light so the colour saturation never “peaked” on good cinema grade cameras. That way, it could be colour graded
by graypegg 3y ago
I was thinking they were somehow controlling the light so the colour saturation never “peaked” on good cinema grade cameras. That way, it could be colour graded back to normal by turning down the magenta saturation. (I’m no expert, so this is the wrong terminology I bet, but I’ve messed with the “tint” slider in Apple’s Preview.app that does give everything a magenta/purple hue if you crank it up.)
However, this says they’re using an ML colourizer tool to un-magenta the image after it’s been masked? Why not just invest in ML tools that can make a greenscreen mask for you? I actually think that already exists at a pretty advanced level. (Considering it’s already very common on phone cameras and video chat apps, with surprisingly good results)
This seems like a lot of effort to just make the mask layer an “in camera” effect. Maybe there’s a good reason for that?
- anileated 3y agoIt almost never happens in real life so normal photographers don’t have to deal with it, but if there is no green color at all (e.g., you mix magenta and blue so your green pixels are all at noise floor) then you cannot bring it back from nothing as you color-balance raw footage. You would have to do some coloring. However, human perception is such that color is much more subjective than things like artefacts from green screen separation, so it might actually not be a big deal.
- mmcwilliams 3y agoBeing able to preview effects while shooting may be seen as a potential way to save production costs by removing some of the need for re-shoots and pickups.