During some resent online research I came across a great sharpening technique that doesn't have nearly the amount of noise you will get with a similar sharpening degree when using the Unsharp Mask filter. And it's easy and fast...
First, be sure that you are working on a layer that has all of your visible layers merged onto one flat layer. Then make a copy of that layer and convert it's mode to Overlay (this layer has to be no top of the original layer). Now go to Filter/Other/High Pass and set the Radius Pixels to 3. (1 pixel if you're working on web graphics)
Of course, all sharpening techniques are going to add some noise. So if you see any areas that got a little too noisy, then simply use a mask to airbrush out portions of the Overlay layer. And if it got too noisy overall, then reduce the opacity of the Overlay layer as needed.
This is the technique I use, we must have read the same article. Its a gift and a curse though because I seem to do it naturally even on photos I don't need to like selling on Ebay and holiday photos. Their only of drunk friends but at least their nice and sharp
Yes, High-pass filters are very efficient (GIMP plugin has a selection of a few algos, best for different purposes)... did you notice that it also reduces glow/flares at the edges of bright objects against dark backgrounds, so it perfectly serves the two purposes. :)
photos), Canon PS-A610 (rarely, very good at macro with ada...
Parisvas, can you share details of the LAB technique you mention please? I like trying out different methods, especially if the photo is already a bit noisy in parts.
I recently got a nice shot of a Blue Morpho butterfly under very difficult lighting conditions (lots of very dark jungle green and consequent noise). I waited for such a long time for the butterfly to get still so I'd like to try to rescue the shot! Thanks.
Nikon d90, 18-200 mm zoom, 50 mm 1.4 G
Canon G9 + teleconverter
The LAB sharpening technique is nothing more than aplying sharpening on the Luminosity Channel of an image converted in LAB mode. Here is the url of an article for this technique (what comes around goes around):