Processing challenge

Hi everyone.

I have a photo posted below, that is proving very tough to process. It is an image of the 'Which's Head nebula'. The nebula is very faintly visible in the centre of the raw image. However the bright background and vignetting are making it very difficult to enhance the nebula. I have been trying to use Photoshop 7 to make a blurred copy of the image and then subtracting it to remove the background and vignetting, but it is not working very well, partly because the nebula covers a fairly large area.

Would anyone be interested in having a go at this image to see what you can come up with? I am sure that not only I, but many others would be interested to hear of ways to clean up this type of photo.

Thanks for any help,

Maurice

Attached Image:

I took a shot at reprocessing your image. Here it is.

Lee

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Hi, here is my shot at zooping up your picture. I cropped out the dark corners and played with the levels. If you have a larger hi-rez image this may work a little better. There was a S&T article a year or so back that discussed how to remove vignetting.

Joe

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Maurice,

Go here

http://www.astropix.com/HTML/J_DIGIT/VIGNET.HTM

and when you are finished with that article, take a look t the rest of the site. It is the treasure trove of astrophoto technique.

Alex