Art, While I am not refuting you, I wish to elaborate on one detail that you did not make real clear in your response so that others will not go away with a misunderstanding. > A common trick of the trade is to convert the image to LAB, and then > only sharpen the monochromic image, leaving the color alone.
This might more accurrately be states as "...then only sharpen the L or Luminescence channel...." [EMAIL PROTECTED] wrote: > [EMAIL PROTECTED] wrote: > > >> >> Has anyone tried sharpening the channels individually for a color >> image? Since I don't do much color, I never thought of that >> before...but it seems like it might be advantageous, as you wouldn't >> lose as much detail in the sharper channels... Any thoughts on this? >> >> Regards, >> >> Austin >> > > > A common trick of the trade is to convert the image to LAB, and then > only sharpen the monochromic image, leaving the color alone. Since > the human eye responds much more to brightness levels than color (we > have a lot more rods than cones) that can sometimes be effective is > reducing color artifacting that USM can create. It's the same basic > principal that was used with "s-video" and super 8mm video. hey > increased the frequency on the luma signal, pretty much leaving the > color signal alone since it is much more prone to noise when "pushed". > > Art > > -------------------------------------------------------------------------- -------------- > Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe > filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) > in the message title or body > > > --- > Incoming mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.617 / Virus Database: 396 - Release Date: 3/9/04 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.617 / Virus Database: 396 - Release Date: 3/9/04 ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body