How to Combine Ha Channel to OSC Data

Hi

Is there a way to use SIRIL to combine Ha data to OSC?

Thanks
Joe

Sure. Either the RGB compositing tool or the PixelMath Tool.
It’s up to you.

How do you deal with a OSC color image in the rgb composition tool?

You can split R G B channels. Either with the split command or with the extraction module in the Image Processing menu.