AmphiSoft Photo Sharpen is a Photoshop plug-in for advanced photo sharpening without forming halos. (I mentioned another site offering tips on halo removal the other day) It provides object edge sharpen and general sharpen algorithms.
AmphiSoft is fully compatible with various image editors, like Adobe Photoshop, Macromedia Fireworks, JASC, Corel and Ulead image editors, and numerous freeware like IrfanView and XnView. The plug-in works with 8bit per channel and 16bit per channel RGB images.
The latest version 1.1 has improved rendering and a scaleable dialog window. It costs US$29.
