Any tips for combin...
 
Share:

APP 1.076 will soon be released... check the release notes !

APP 1.075 has been released !

2019 November: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse, Astronomer in Charge of iTelescope.net

2019 September: Astro Pixel Processor and iTelescope.net celebrate a new Partnership!

Any tips for combining an Ha and a color panel?  

  RSS

(@mcbbcn)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 42
July 12, 2019 09:09  

Hi,

I watched the mosaic videos but I don’t think what I’m trying to do matches that.

I have an Ha integrated panel of the butterfly nebula which I took with my mono ccd, and I have a color integrated panel of the same nebula which I took with a color ccd.

What are the steps for overlapping these 2 images and bringing them together into one?

Thank you,

Miquel

WO 80mm & Maksutov 150mm
QHY8L & QHY9M


ReplyQuote
(@wvreeven)
Neutron Star Customer
Joined: 1 year ago
Posts: 119
July 12, 2019 15:19  

Hi Miquel,

Go to tab 9) Tools and select "combine RGB". Use a small amount for the ratio of H-Alpha, like 10% or 20%, to start with and see how the image changes. Too much might upset the colour balance.

 

HTH, Wouter


ReplyQuote
(@mcbbcn)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 42
July 12, 2019 19:23  

Hi,

Thanks for the tip. I know my color shot and my Ha shot are slightly different in size. If "combine RGB" can take care of that slight difference in size, it would be great. I will give it a try.

Best,

Miquel

 

WO 80mm & Maksutov 150mm
QHY8L & QHY9M


ReplyQuote
(@wvreeven)
Neutron Star Customer
Joined: 1 year ago
Posts: 119
July 12, 2019 19:42  

Hi,

You may need to register the two images first to make sure they are aligned.

 

Wouter


ReplyQuote
(@mcbbcn)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 42
July 12, 2019 20:30  

Hi Wouter,

I will do that. Thank you!

WO 80mm & Maksutov 150mm
QHY8L & QHY9M


wvreeven liked
ReplyQuote
(@mcbbcn)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 42
July 13, 2019 08:25  

Hi Wouter,

I used the RGB combine and I mapped my Ha fame to Hydrogen Alpha but I'm a bit confused about how I map my color image. I tried to select custom for my color image, but then it is asking me to map R, G, B and I don't have R,G and B frames. I just have a color image. So, how I do map my color image?

Best,

Miquel

WO 80mm & Maksutov 150mm
QHY8L & QHY9M


ReplyQuote
(@kijja)
Red Giant Customer
Joined: 2 years ago
Posts: 91
July 13, 2019 12:49  

Hi Miquel,

You need to create 3 monochrome R G &B files from a color image This will be done by loading the color image then go to 2 calibration tab, in the very end of sub menu check split channels for saving calibration frames. Then you can go on loading Ha and the mono RGB register and normalize them if they were not from the same optics. You then can combine these files in combine rgb tool. 

Clear skies, 

Kijja

 


ReplyQuote
(@mcbbcn)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 42
July 14, 2019 04:03  

Hi Kijja,

Thanks for the tip. In the end, I loaded the image as custom and click ok for the same image to be used with red, blue and green and it worked ok.

Best

Miquel

 

 

WO 80mm & Maksutov 150mm
QHY8L & QHY9M


ReplyQuote
(@mcbbcn)
Main Sequence Star Customer
Joined: 2 years ago
Posts: 42
July 14, 2019 06:58  

Hi again,

I have a question about ‘RGB Combine’ as it sounds like a pixel math operation but when I increase the Ha signal, it seems to be the same percentage for all the channels (R,G,B).

if I wanted to apply 80% of the Ha signal to the red channel, then 20% of the Ha signal to the blue channel and 20% of the Ha signal to the green channel, how would I do that?

Best,

Miquel

WO 80mm & Maksutov 150mm
QHY8L & QHY9M


ReplyQuote
Share: