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25 Jul 2018
Glad to announce of release of INDI Library v1.7.4 on 2018-07-25. A few drivers were added in this release as we continue to improve & stabilize existing drivers.
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TOPIC: getting colour with ZWO ASI224MC

getting colour with ZWO ASI224MC 1 year 4 months ago #15752

Hi every one,

I am trying to get my Asi224mc work with Indi and Kstars on my RPi3. Everything works fine, except I only get black and white images or wrong colors. I may be using wrong settings in Indi, as colors are correct when I use OACapture on the same device.
Has anyone experienced such kind of issues? What is the right setting to solve this?

Thanks in advance.

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getting colour with ZWO ASI224MC 1 year 4 months ago #15753

Post captured FITS where the colors are "wrong" and the "correct" colors you expected. What format did you use?

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Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
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getting colour with ZWO ASI224MC 1 year 4 months ago #15755

Thank you for your quick reply. I will post FITS as soon as I can get to my RPi.

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getting colour with ZWO ASI224MC 1 year 4 months ago #15757

Does the FITS viewer debayer images?
The following user(s) said Thank You: knro

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getting colour with ZWO ASI224MC 1 year 4 months ago #15788

Yes FITS Viewer debayer images. I tried yesterday with ASI and the colors looked OK.
The following user(s) said Thank You: rockstarbill

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Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info

getting colour with ZWO ASI224MC 1 year 4 months ago #15789

Well that's pretty damn cool.

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getting colour with ZWO ASI224MC 1 year 4 months ago #15856

Hi,
here is a picture with bad colors shot with indi.
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getting colour with ZWO ASI224MC 1 year 4 months ago #15857

And here is a sample with better colors, shot with oaCapture.
There is definitely something I do wrong, but I don't know what.
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getting colour with ZWO ASI224MC 1 year 4 months ago #15877

It looks like it is over-exposed. Can you take a 0.1 seconds exposure in RGB24 and check the difference?

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Jasem Mutlaq
Support INDI & Ekos; Get StellarMate Astrophotography Gadget.
How to Submit Logs when you have problems?
Add your observatory info

getting colour with ZWO ASI224MC 1 year 4 months ago #15933

Here are a few additonal samples with different exposure times. The colors are purple compared to the actual ones and I got a strange result when
I set exposure to 1ms, then back to 10ms. The colors are even duller (almost black and white) with liveview.

I also noticed issues with the liveview function when I played with the exposure time. With some exposure times (I think it is with short exposure times, but I need to check again), the images shows big blocks, then, when I set the exposure time back to an acceptable value, the blocks are still there.

Matthieu

[EDIT] OK, here's how it seems to behave when I change the exposure time.
After changing the exposure and starting the live video, the exposure is not changed on the image. I have to stop live video, then make preview. When I start live video again, the exposure of the image is corrected after one second.
If I make a preview after changing the exposure time, the preview shows an image which looks like overexposed. After several previews (3-6), the image is correct, and when I start live video, the exposure is correct after about a second.

Note that I managed to get an almost-right colored image (not with live video, though) by tweaking the WB-B and WB-R parameters. However, if I modify the Gamma, the color balance has to be done again.
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Last Edit: by casafossat.

getting colour with ZWO ASI224MC 1 year 2 months ago #16840

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I have the same camera and have similar colour issues. Could you post your best choices of WB-B, WB-R and gamma? Thanks.

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getting colour with ZWO ASI224MC 4 months 3 weeks ago #24329

Were any of you able to get this fixed? What settings did you end up with? I'm trying to use the camera for guiding, but having issues with it displaying properly in the preview.

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