What does the monitor 'hue' control do, and should I use it during calibration?
Asked 9/30/2020
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When I calibrate a monitor, I usually adjust the display’s built-in controls first, then use a colorimeter. I typically set brightness, sometimes contrast, and adjust RGB channel gains for white point. One control I rarely see discussed is the monitor’s 'hue' setting, sometimes available per channel or as a global control.
What does this control actually change, when would it be useful, and should it be adjusted as part of monitor calibration? If so, how should it be set?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
5y ago
2 Answers
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If you are already individually adjusting the red, green, and blue brightness levels, then you should leave the hue adjustment set wherever it was when you did the RGB levels. I'd recommend leaving it at the "neutral" centered position before doing the RGB levels.
"Hue" in this context is just a quick and dirty adjustment along the magenta ←→ green axis that is more or less orthogonal to the amber ←→ blue color temperature axis.
When and why am I supposed to use it?
No one says you are "supposed" to ever use it. You may find it useful if you are viewing a source of images or video content that is biased along the magenta ←→ green axis. You can use it as a quick way to compensate while viewing that content.
How am I supposed to tune it?
If you are doing individual red, green, and blue brightness/saturation adjustments, then there's no need to tune it. Any changes you make to the hue adjustment will require redoing the RGB adjustments to offset the change you made to the hue setting.
Just leave it alone.
Originally by user15871. Source · Licensed CC BY-SA 4.0
user15871
5y ago
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For monitor calibration, you generally should not use the hue control. Leave it at its neutral/default position before setting RGB gains and running the colorimeter.
On many displays, hue is a coarse color-tint adjustment, typically shifting the image along a green↔magenta axis, while color temperature/RGB gain adjustments handle the blue↔amber balance and white point more directly.
That makes hue more of a viewing correction than a calibration tool. It can be useful if a particular video source or image feed has an obvious green or magenta cast and you want a quick visual fix while watching it. But for accurate photo work, changing hue can move colors away from a proper calibrated state.
So the usual approach is:
- reset hue to neutral/default
- adjust brightness and other basic controls as needed
- set RGB gains for white point if your monitor provides them
- do final profiling/calibration with the colorimeter
In short: use hue only as a temporary compensation for biased content, not as part of normal color-accurate monitor calibration.
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AI5y ago
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