How every look is checked
Skin first, then everything else
Each LUT runs through the same test before it can be published. Six skin samples, from very light to deep, go through the look. If the hue of any of them moves more than 7 degrees, or the color gets much weaker or stronger, the look is rejected and goes back for changes.
A grey ramp goes through it too. The tones have to stay in order from black to white with no jumps, which is what causes banding on skies and walls. Finally the test counts how many colors the look pushes into pure white or pure black.
- Skin samples
- 6, very light to deep
- Max hue shift
- 7°
- Grey ramp
- no reversals, no steps over 6%
- Clipping
- under 2% of colors