offset and substract

pleiades 30 secs
Photo Information
Copyright: Don Evripidou (Poseidon_Simons) (369)
Genre: Landscapes
Medium: Color
Date Taken: 2008-01-11
Photo Version: Original Version, Workshop
Edited by: Andor Gondocs (gondox) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 332 W: 63 N: 294] (1427)
Edited Image Upload Date: 2008-02-16 05:35:19
Categories: Sky
Camera: Nikon D200, RAW 1250asa
Exposure: 1, 30 seconds
Details: Tripod: Yes
Workshop Note
I used The Gimp but I'm sure ps and others are able to do this:
1. duplicateed layer
2. moved it ~2px up and right
3. set transparency mode to substraction (left opacity @100%)

We're done: the 30 sec line is gone.
But be careful: as you can see the paler stars disappeared! Some play with br/contr. and stuff like that and you can leave them visible too.

I hope you like it!
ps. sorry for the frame :)

Cheers,
Andor
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