LRGB Processing

[Aster]

Being a newby to CCD imaging and not wanting to reinvent the wheel I thought someone with more experience could advice me.

Tried to read and understand quite a bit on LRGB processing but haven't come across how to merge the LRGB capture files.

Do you put them all in the same directory, Align and Stack them and then process?

Or do you align/stack each colour then process and then merge?

Also is there a prefered capture file type for LRGB?

I am using a Mead DSI Pro with Meade Filters of which the best ratio is 1:2:2 (R:G:B) or so I have read on the Meade Autostar Forum.

[Geoff45 (Geoff)]

If you are using Photoshop, do the following:
1. Open the RGB images. Open the Channels Palette. Click the little triangle on the top right, select Merge Channels from the pull down menu. Select RGB and follow the prompts. Save as RGBImage.tif. Copy the RGB image to the clipboard
2. Open the Luminosity image. Convert it to RGB (Image>Mode>RGBcolor). It will still look the same, but you can now paste a colour image onto it. Paste the RBG image onto it. You should now get two layers in your layers palette. Select "color" as the blend mode.
3. Work on the Luminosity layer to get as much detail and sharpness as possible.
4 Work on the colour layer and when you've got it correct as regards hue and saturation, blur it slightly. This will reduce colour noise without affecting the resolution.
Geoff

[Aster]

Thanks Geoff

That's a great help. Will have a play with it and see what happens. The old grey matter is getting a bit worn out