Archived posting to the Leica Users Group, 2006/04/10
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Eric, You can achieve the same with High Pass sharpening in Photoshop, Filter-Other-High Pass Cheers Jayanand Douglas Sharp wrote: > Hello Eric > For one thing it only sharpens the higher frequency portion of the > spectrum - this means you have a better chance of avoiding low and > mid-frequency aliasing or artefacts. > The second advantage is a preview function which shows the effect of > sharpening as a function of sharpening strength - you have to see it > to get the idea. this is a grey scale display which shows the edges of > the image being sharpened - this is an excellent QC tool for avoiding > the luminous edges often caused by oversharpening. It's not quite as > much of a black-box as unsharp mask > The third is the extreme sensitivity - the sharpening really snaps, > and is controlled by only 2 sliders. > In addition it's very effective, fast and it's free. > Douglas > I'll have to get around to making a little gallery showing and > comparing freeware/shareware/cheapware/ and can't-be-done-without-ware > one of these days :-) > There's some clever stuff around, and it's not all expensive. > > Eric wrote: > >> Douglas: >> >> >> >>> By the way, some of the other stuff on the site is very interesting >>> too, particularly the high frequency sharpening plug-in. >>> >> >> >> How is it different from the regular unsharp filter in Photoshop? >> >> >> >> -- >> Eric >> http://canid.com/ >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > >