A special processing is used for narrowband to (L)RGB image mapping. It is used to enhance (L)RGB channels with narrowband data. It cannot be used without RGB filters. This mapping is similar to NBRGBCombination script in Pixinsight or as described in Light Vortex Astronomy tutorial Combining LRGB with Narrowband. You can find more details on parameters from those sources.
If narrowband RGB mapping is used then narrowband Color palette is not used.
With narrowband RGB mapping you can choose:
- Mapping of narrowband channels to (L)RGB channels
- Boost for (L)RGB channels
- Bandwidth for each filter
- Test the mapping with a test button
It is also possible to do narrowband to (L)RGB mapping using Pixelmath formulas in Color Palette section.