Chronos > Software Dev

Missing (weak) Green colours

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tesla500:
Most color issues can be corrected in post using a color correction filter. It can be a steep learning curve, but there should be lots of video tutorials on Youtube.

There's a lot more than meets the eye in color processing in most cameras, and Chronos is no different. The main thing determining the output color is the Color Correction Matrix, which is a mathematical matrix multiply that is applied to the raw RGB data coming off the sensor. Since the color response of the whole system from camera to monitor differs from your eye's response quite a bit, there's a lot of wizardry going on to get good looking video on your monitor, and this takes a lot of work to optimize and get right. With the limited development time available so far, the color correction matrix is currently fixed to one optimized for low CRI white LEDs, which seems to work OK in most situations. You may actually get better results right now using cheap LED lighting. Better in-camera color is coming, with proper color temperature/illuminant spectrum selection.

David

John Delonghi:
I've been doing some lighting tests and using a color input target. Here's a frame grab which I've applied some color correction to in post, but it is close to what came out of the camera.



The greens are actually not bad. It's the magenta which seems to be lacking (the colour above the number 14). It could be corrected but would take quite a lot of tweaking.

Also remember that your monitors and output devices should be calibrated if you're going to compare like for like.   
 

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