Online Narrowband RGB Combination Preview Tool

by Dylan O'Donnell

How it works

Astronomers use a mono (black and white) camera with filters (eg Ha, Sii, Oiii or R, G, B) to capture high resolution images even in light polluted areas.

By combining these filtered images as R/G/B Channels, a coloured image is produced. This tool allows you to upload your black and white source images, then shows you every possible permutation for the various combinations. It is not intended as a replacement for colour combination in post processing programs such as Photoshop or PixInsight, but as a quick preview tool to see how the various combinations look.

If you would like to learn more about narrowband imaging, contact us. Or browse our range of narrowband filters and accessories.


Link to this result:
https://bintel.com.au/narrowband-preview-tool/?ha=uploads/ha2017MayMon05533737.jpg&sii=uploads/sii2017MayMon05533737.jpg&oiii=uploads/oiii2017MayMon05533737.jpg

Upload 3 new source images
- Only works with JPG images - Ideal size 1024px wide
- Make sure your source images are greyscale, not colour
- Make sure your source images are aligned
- You can also load R/G/B filtered images instead of Ha/Sii/Oiii to try combinations


Hydrogen Alpha / R
[Sulphur ii] / G
[Oxygen iii] / B
Ha
Sii
Oiii

Ha/[Sii]/[Oiii]- HSO COMMON
[Oiii]/[Sii]/Ha
[Sii]/Ha/[Oiii] - HUBBLE PALETTE
Ha/[Oiii]/[Sii] - CFHT PALETTE
[Oiii]/Ha/[Sii]
[Sii]/[Oiii]/Ha

Bi-Colour

Ha/Ha/[Oiii]
Ha/Ha/[Sii]
Ha/[Sii]/[Sii]
Ha/[Oiii]/[Oiii]
Ha/[Oiii]/Ha
Ha/[Sii]/Ha
[Sii]/[Sii]/[Oiii]
[Sii]/[Sii]/Ha
[Sii]/Ha/Ha
[Sii]/[Oiii]/[Oiii]
[Sii]/[Oiii]/[Sii]
[Sii]/Ha/[Sii]
[Oiii]/[Oiii]/Ha
[Oiii]/[Oiii]/[Sii]
[Oiii]/Ha/Ha
[Oiii]/[Sii]/[Sii]
[Oiii]/[Sii]/[Oiii]
[Oiii]/Ha/[Oiii]