planetary RGB combine question

[Rigel003 (Graeme)]

If your blue channel e.g. is significantly lower on the histogram than R & G what is the procedure in RGB combine? Do you give it a higher weighting or do you maybe give them all equal weighting and increase the blue level afterwards?

[iceman (Mike)]

You can do it either way, Graeme. They both really serve the same purpose.

I used to do it in AstraImage using the intensity parameter when doing an RGB combine, but nowadays I simply recombine in RGB with all defaults - I don't change intensity or align RGB. I do all that (aligning channels, adjusting levels) in photoshop afterwards.

By the way i'm sure you know, but a lower intensity (in astra image) will brighten that channel. (eg: 0.8 instead of 1).

[Rigel003 (Graeme)]

Thanks Mike. No I didn't know that. I'm new to the RGB scene and have only used equal weights of R, G & B so far.