Developer website: BoxTop Software
ImageVice can make GIF, PICT, BMP, and PNG (the most popular multimedia formats) images up to 70 percent smaller without sacrificing image quality. ImageVice color reduction technology uses a procedural method for removing space-variant system imperfection and neural modeling of the logarithmic response of the human visual system. It also employs a new color-mapping technique based on perceptual criteria for shape-form shading to produce superior visual results and also greatly improved compression levels. ImageVice is a filter plug-in that's compatible with Adobe Photoshop 3.0 or later and other applications supporting the Photoshop 3.0 filter plug-in API.
Version 2.1: Now with support for MacOS X and Adobe PhotoShop 7.0 and Adobe PhotoShop CS.
System 7.0 or later, including Mac OS X.