ASI1600 MC : Debayer offset and array type

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jcj2249
Posts: 12
Joined: Mon Nov 21, 2016 5:01 pm

ASI1600 MC : Debayer offset and array type

Post by jcj2249 » Fri Feb 10, 2017 6:44 pm

I owe a ASI1600 MC cooled which I use with Nebulosity 4.
When I debayer my photos, I'm asked to enter the Matrix Offset and I have the choice between :
X = 0 Y = 0
X = 0 Y = 1
X = 1 Y = 0
X = 1 Y = 1
What is the ASI1600 MC offset ?
For the array type, I have to choose between RGB and CMYG.
I checked RGB. Correct ?
Thanks

jcj2249
Posts: 12
Joined: Mon Nov 21, 2016 5:01 pm

Re: ASI1600 MC : Debayer offset and array type

Post by jcj2249 » Sat Feb 11, 2017 1:38 pm

Well, I found the answers in another thread : "ASI 1600 MC Color - No color in FITS files ?"
Sam gave them on an attached image : "they are on the image I attached" ... but the attached image is not attached anymore !
Sam please help !

yang
Site Admin
Posts: 226
Joined: Fri Jul 25, 2014 2:43 am

Re: ASI1600 MC : Debayer offset and array type

Post by yang » Tue Feb 14, 2017 8:15 am

you need to determine the offset by the debayer pattern of sensor, you can find the debayer pattern
in the setup dialog of our ASCOM driver.
correspondence between pattern and offset is:
RGGB: x=0,y=0
GRBG: x=1,y=0
GBRG: x=0,y=1
BGGR: x=1,y=1
Attachments
ASCOM sensor type.png
ASCOM sensor type.png (3.65 KiB) Viewed 1633 times
ZWO software engineer
Location:lon=120.6 lat=31.3
SuZhou China

jcj2249
Posts: 12
Joined: Mon Nov 21, 2016 5:01 pm

Re: ASI1600 MC : Debayer offset and array type

Post by jcj2249 » Tue Feb 14, 2017 9:24 am

Thanks, but on a Mac I do not have access to the ASCOM drivers.
From your answer I concluded that the ASI1600 Bayer pattern is : RGGB and hence the offset should be : x = 0, y = 0
Correct ?

yang
Site Admin
Posts: 226
Joined: Fri Jul 25, 2014 2:43 am

Re: ASI1600 MC : Debayer offset and array type

Post by yang » Wed Feb 15, 2017 1:46 am

in fact 1600MC's debayer pattern is GRBG, if you don't know the pattern, I think you can try all the offset combination and see if the color is right
ZWO software engineer
Location:lon=120.6 lat=31.3
SuZhou China

jcj2249
Posts: 12
Joined: Mon Nov 21, 2016 5:01 pm

Re: ASI1600 MC : Debayer offset and array type

Post by jcj2249 » Wed Feb 15, 2017 5:38 am

Thank you Yang !

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