0.90
#...
·
 |
|---|
|
I can't for the life of me figure out how to do this. I'm using siril and gimp for processing. I captured data with an OSC with a dual narrowband filter (First time). Using siril, I processed and extracted the Ha and Oiii layers, giving me my two grayscale images, one for each spectrum. Now, I'm trying to figure out how I convert the Ha layer to be red, and the Oiii layer to be that typical teal color, where I would then merge them with transparency, much like how stars are added back in to normal images. My end goal would be something like this: https://www.astrobin.com/full/tybmrb/0/?q=dual%20narrowband where the blue layer is very distinct to the red layer. I found some tutorials about how to use siril's pixel math tool to create a blended color scheme to mimic the hubble pallete by defining RED as Ha, GREEN as 0.6*Ha+0.4*Oiii, and BLUE as Oiii. But for this shot I'm capturing, the look isn't quite what I'm going for: https://www.astrobin.com/full/8akb5n/0/?q=veil%20nebula Any help would be appreciated! |
7.56
#...
·
·
1
like
|
|---|
| If you want to create a near true-color image you don't have to do anything, just balance the colors to obtain the usual rendering for a Ha-OIII emission nebula. If you want to create a true Hubble palette image you are out of luck as you haven't got a third independent color channel. |
|
0.90
#...
·
|
|---|
andrea tasselli: Interesting, I reprocessed my image how I would normally handle a sing OSC image, and it does look similar, I guess that will work for now. |
4.02
#...
·
·
2
likes
|
|---|
Kyle Cerniglia: So if you successfully got the 2 grayscale images then assign H to red, O to green and blue, and that's it. Directions: SIRIL - IMAGE PROCESSING - RGB COMPOSITING Or you can just keep the channels unseparated from the beginning and process the original OSC image. |
