4 replies to this topic

[oneredpanther]

I may be missing something obvious here but I'm a Pix newbie. 

 

I can see the very obvious LRGB combine tool, which is great if you have separate RGB files, but what if you want to combine RGB from a one-shot colour camera with luminance from a mono? 

 

Is there a simple method? Or is this the kind of eight-thousand step, via twelve different modules, with twenty kinds of mask, and recant a special latin prayer that PixInsight's  user 'friendliness' is known for? 

[Tkall]

I have the same question.  Can't you just uncheck r,g and b leaving l checked, drag the l image into the l text box and drag the blue triangle onto the rgb image?  Please correct me if this is wrong.

[Robert7980]

There are many easy ways to do it, the easiest is probably just using the LRGB combine tool, add your L image leaving the the RGB blank and drag it onto your colors… Never tried exactly what your doing but that should work. 
 

Another way is to use PixelMath… With the Expression in RGB/K feild with create new image selected… 

 

combine($T, yourLimangeName, op_screen()) 

 

Then drop the triangle your color image… That’s the simplest expression… 

 

That should do it as well, and you can add math here such as multipling, *0.8 to add only 80% L… Anything you can think up can be done in the expression… 

 

I’d create this and save a copy by dragging the triangle onto the workspace then save the work space as it’ll a pixel math expression you’ll use a lot… 

Edited by Robert7980, 20 November 2023 - 08:58 PM.

[oneredpanther]

I have the same question.  Can't you just uncheck r,g and b leaving l checked, drag the l image into the l text box and drag the blue triangle onto the rgb image?  Please correct me if this is wrong.

Wow! Yes you can. Now that was easy. Thank you!

[bobzeq25]

PixelMath solution.  Typical PI, great results if you understand what you're doing, and are willing to put in the work.

 

https://www.youtube....h?v=Y0ZRF1txTao