Adding two images

SteveJP

Member
Mar 1, 2018
11
0
Hi,
I'm wondering if there is a way I can just arithmetically add two images together. (Assuming they are the same size). Perhaps ImageIntegration will do this, but I'm unsure of the underlying mechanism or what parameters I'd have to specify to get this outcome.
Thanks
Steve
 

ngc1535

PTeam Member
Feb 1, 2014
506
54
Steve,

To simply add two images, use Pixel Math.
In the Expression field type the names (exactly as they appear in the Views on your desktop) with a "+" between:
Image1 + Image2

If the images are on your disk, you should open them in PixInsight first... then add them.

Now... having said that- the question of what you are doing "concerns" me... but the above is certainly the right answer. :)

-adam
 

Geoff

Active member
Mar 6, 2020
30
6
You can also use ImageIntegration with a little trick. ImageIntegration needs at least 3 files, so the trick is to load each of your two files twice, letting II think it has 4 files