Image sharpening.

[momji1971]

And, just to make things more complicated. Unsharp mask doesn't actually sharpen! It alters micro contrast tricking the human eye into believing the image is sharper. True sharpen uses deconvolution algorithms.

regards.
Stu.

[Trik]

For all post-conversion processing I have always used Corel PhotoPaint (not to be confused with Paintshop Pro) which is part of the Corel Graphics Suite. I have tried Photoshop CSS but found it pretty impenetrable and counter-intuitive for me. Corel PhotoPaint makes a good job of sharpening I think (and everything else - as good as PS in my view), and my favourite method is to use a High Pass at radius 1 or 2, merging either Soft Light or Overlay, which brings out fur and feather detail well. If I want to bring out even more detail, I might apply a subtle Tone Curve to the High Pass before merging. Depends on the photo and whether it is for web display or printing. What I cannot stand are the noticeable white or black edges which an Unsharp Mask can create if used aggressively, but, then, I am a self-confessed pixel-peeper.

Trik