i have abandoned Unsharp Mask completely. it adds apparent sharpness based on knowing nothing about the image and not using any physical model of how light works in a lens. this means it puts edges where there aren't supposed to be edges and doesn't increase contrast like a proper sharpening function should. FocusFixer uses a model of how light works in a lens. it's $49 and worth it.
Herb.... ----- Original Message ----- From: "Kenneth Waller" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, October 23, 2003 6:58 PM Subject: Re: Unsharp Mask > I found some info on the web a while ago pertaining to using USM on Kodak > Photo CDs. It basically recommended viewing @ 100% , in Lab mode, Lightness > channel. The amount (amount controls the strength of the filter) recommended > was 100, the radius (radius control how many pixels in from the color edge > are affected) varied from .25 (lowest res) to 4.0 (highest res) with the > threshold @ 2 (threshold controls how different the colors on opposing sides > of an edge have to be before the filter goes to work). This has become my > starting point. It still is basically trial and error for me but I find by > starting out with these settings I am generally in the ballpark.
