Star Mask Troubles

[Mark de Regt]

Hi,

I like to use Multiscale Linear Transform to sharpen my images.  But in order for that to work reasonably well, I need an effective mask of my stars.

But I seem to be completely incapable of effectively masking stars, including their fainter outer parts, without masking significant parts of the nebula or galaxy that I'm trying to process.

I use Curves Transformation to transform the luminance master into a high-contrast mask.

Can someone point me to a tutorial that might help solve my problem?

Thanks.

Mark

[jkmorse]

Mark,

If you are only trying to protect the stars, why not simply use a star mask?  Its an easy process to use and gives excellent results.

But from what you are describing, I would think you would want to protect both the stars and the background so that you are only sharpening the nebulae and galaxies.  If that is the case, take a look at the following post for some great ways to create a target only mask that protects everything else:

http://pixinsight.com/forum/index.php?topic=9149.msg58775#msg58775

If that is not what you are after, report back.

Best,

Jim