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individual adjustment of the red, green and blue channels of a cmos camera

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individual adjustment of the red, green and blue channels of a cmos camera was created by MORELLI

Is there a way to adjust the histogram of the red, green and blue channels of a CMOS camera like the QHY183C?
It would be interesting to balance the background of the sky during capture.

Robert
3 years 9 months ago #55830

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Replied by Jim S. on topic individual adjustment of the red, green and blue channels of a cmos camera


That is more of a post processing software feature than an image capture. A color camera with a Bayer matrix splits the light for pixels to RGGB.

I don't see or have any understanding on how you could adjust that during a image capture.

Cheers
Jim
Celestron CGX, QSI683 Astrodon Gen 2 E series LRGB, Ha, OIII, ES102CF, ZWO-ASI178MC, 60mm guide scope, Pegasus Focus Cube 2, Feather Touch Focuser.
Last edit: 3 years 9 months ago by Jim S..
3 years 9 months ago #55831

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Replied by MORELLI on topic individual adjustment of the red, green and blue channels of a cmos camera

You can do it with Sharcap or Firecapture by example. So the background is more neutral.
3 years 9 months ago #55860

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Replied by Peter Sütterlin on topic individual adjustment of the red, green and blue channels of a cmos camera

You mean (only) for display during capture, not permanently in the stored file?
3 years 9 months ago #55862

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Replied by Bernd Limburg on topic individual adjustment of the red, green and blue channels of a cmos camera

Hi,

at least for the ASI294MC this adjustment is permanently written into the FITS, which is not optimal. It is a property of the ZWO Indi driver. On the „Controls“ tab in the driver you can adjust „WB-R“ and „WB-B“. But, as said, this is baked into the FITS raw image. I would leave the WB-R and WB-B at 50 (neutral gain) and do color correction in post.

CS, Bernd
3 years 9 months ago #55867

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