Initial sharpening is what Bruce Frasier recommends: http://www.creativepro.com/story/feature/12189.html
As to the effectiveness of sharpening on the smaller image - you have fewer pixels to work with, so the same sharpening radius will be much more visible. Maris ----- Original Message ----- From: "Ken Durling" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, June 09, 2002 10:43 AM Subject: [filmscanners] Re: JPG sharpening [was: Color spaces for different purposes] [snipped] OK, I think I'm getting clear here. So let me rephrase a bit. When I scan an image - into whatever file formet, I use TIFF out of Vuescan - and then open it in PS, I can immediately see some sharpness loss which I understand to be a result of the scan - scanner limitation, etc. One eventual step in my workflow is usually to try to restore the image to something resembling the original slide, through the use of as little sharpening or USM as possible. If I try that on my original file - before down-sampling - I have to use large USM values to see any effect at all, or use "sharpen more" (I'm using PS Elements at the moment). Once I've resized for the web - typically to 800 pixels in long dimension, which I do using a bicubic resample and changing the resolution, usually to about 600dpi from 2720 - the file shrinks from its former +/-20MB to about 1.25MB and sharpening must be done very cautiously in order to avoid halos and other artifacts. When I resize for *print* I don't resample, I just change the dimensions and leave the resolution the same. It's in the down-sized scan that I see the change in sharpening response. So, aside of asking for any observation regarding improving my workflow - why is the sharpening so much more effective on the smaller image? And am I losing something I'm not yet aware of? I'm sure a much more experienced eye can detect sharpening artifacts in my stuff, but I've been relatively pleased with the results. 2 examples - feel free to criticize: http://www.photosig.com/viewphoto.php?id=716 http://www.photosig.com/viewphoto.php?id=29447 But I'd like to understand more and get better results. Thanks for all the explanations! Ken Durling Visit my new easier-to-browse PhotoSIG portfolio: http://www.photosig.com/viewuser.php?id=203 ---------------------------------------------------------------------------- ------------ Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body