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FedeDP / Clightd

A linux bus interface that lets you change screen brightness, compute captured webcam frames brightness and change screen temperature.
GNU General Public License v3.0
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Set temperature based on camera input #118

Open rhendric opened 3 weeks ago

rhendric commented 3 weeks ago

I found this project while looking for a way to set my monitor's color temperature based on the ambient light in the room, but it seems—unless I missed something—that this sets brightness based on camera input but only sets color temperature based on location and time of day.

Before I go diving into how to write a module or a patch that does this, is this something that I'm likely to be able to implement? Any pointers? Or should I keep looking?

FedeDP commented 3 weeks ago

Hi! Thanks for opening this issue! Clight offers such an option under "ambient_gamma" config key: https://github.com/FedeDP/Clight/blob/a4d4762ce6f9ff84e2c843939c9171ac72e2a41d/Extra/config/modules.conf.d/gamma.conf#L42 It should satisfy your needs ;)

rhendric commented 3 weeks ago

Ah, not quite, but it's my fault for being imprecise!

It looks like ambient_gamma sets the temperature of the screen based on brightness from the camera, but not color. I'm looking for a way to set the temperature of the screen based on the measured color temperature of a white object that the camera is pointing at, so that the white point of my monitor matches a white sheet of paper on my desk, without assuming that bright light is blue and dim light is red-yellow.