pngquant is a command-line utility to quantize and dither 32-bit RGBA
PNGs down to 8-bit (or smaller) RGBA-palette PNGs, usually with a
significant reduction in file size (40-70% smaller than 24-bit PNGs).
This unique type of PNG supports full alpha transparency and is
compatible with all modern web browsers, and has better fallback in IE6
than 24-bit PNGs.
Features:
- High-quality palette generation using modernized Median Cut
algorithm.
- Unique dithering algorithm that adds less noise to images than the
standard Floyd-Steinberg.
- Easy to integrate with shell scripts, GUIs and server-side software.
- Fast mode for processing large numbers of images.
===> The following configuration options are available for pngquant-2.18.0_4:
DEBUG=off: Build with debugging support
DOCS=on: Build and/or install documentation
LCMS2=off: Support for ICC profiles via LCMS library
OPENMP=on: Parallel processing support via OpenMP
OPTIMIZED_FLAGS=off: Use extra compiler optimizations
SSE=on: Use SSE optimized routines
===> Use 'make config' to modify these settings