As long as the hue stays reasonably close to the optimal range then it should be OK.įor green screen, below 100 or above 150 is where you should be concerned. For blue screen, most chroma key screen are typically a little less than 240 and doesn't change much regardless of profile. However, for green screen, the hue tends to be a little lower than 120 for Adobe 1998 RGB and a little higher than 120 for sRGB. Mathematically, 120 is the optimal hue for green screen and 240 is the optimal hue for blue screen. It also shows a reference to the optimal hue range for the embedded ICC profile. If the HSB value are optimal then the RGB values will be optimal as well.ĥ: Hue Diagram This shows where your screen is in the hue spectrum. You should optimize your screen setup to achieve the optimal HSB values, not RGB values. Screen shot with this lighting will extract with good transparency masks, have lower color spill, and best avoid light or dark edge haloing.ģ: Average HSB values for your screen These are the values that you want to monitor.Ĥ: Average RGB values for your screen This is more for reference only. If you set up your chroma key backdrop so the values fall in this range then it will give you the best overall extractions. 1: The embedded ICC profile in the image.Ģ: Optimal HSB Screen range This is the best range for HSB for the ICC profile that the image was saved with.
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