A tiny slice of M33

[Nocturnal]

Hi,

just to show that I actually use PCL and not just post about it I'd like to show you a tiny slice of M33 that I imaged yesterday. Almost full moon so the conditions weren't good but I'm debugging some guiding issues and this came out OK anyway :-)

I still have a lot to learn about PCL's capabilities but I used histogram, wavelets and curves to bring out a bit of detail.

http://gallery.tungstentech.com/main.php?g2_itemId=125

I overlayed this onto a picture from someone else to show how small the section of M33 is:

http://gallery.tungstentech.com/main.php?g2_itemId=128

Best,

  Sander

[Nocturnal]

Folks on the Meade_DSI Y! group suggested I should add my L frames. I imagine I can get PSP8 to do this somehow but I'd rather see how PCL does it. There is the obvious LRGB combination process but I already have an RGB composite and just want to layer the L on top of that. Is that possible? How do I align the layers? I saw the rotation tool but how do I move one layer?

Thanks,

  Sander

[Nocturnal]

Ok, I got creative and split my RGB image into its individual channels with PCL. Easy as pie. I then loaded my stacked L frame and tried to combine all 4 with LRGB combination. No joy. It's telling me that one of its generated images Image01_B is not grayscale.

Could you please try this yourself and see if it works for you? I can't attach files here otherwise I would provide the FITS etc.

Thanks,

  Sander

[David Serrano]

There is the obvious LRGB combination process but I already have an RGB composite and just want to layer the L on top of that. Is that possible?

Yep. Just tell LRGBCombination precisely that. You don't need to combine 4 images into one, it's perfectly OK to add the L to an RGB image.

how do I move one layer?

Sorry, dunno.

[Nocturnal]

Hi David,

I tried selecting the RGB image for each of the R, G a B channels. Then of course my L image for L. This also doesn't work. 'Cannot be executed on grayscale images'.

  Sander