My own PKZIP-compatible compressor focusing on space over speed. ) Output files are NOT compressed so it is highly recommended to run a PNG re-compressor (such as PNGOUT above) on the results. PNGHALF is a simple utility which halves the dimensions of an image file by averaging the R/G/B/A of each group of 2x2 pixels - very handy for when you work with artists who like to make "1300-pixel arrows". For a detailed description of the options, please check out the PNGOUT tutorial written by Kerry Watson. PNG files on my website were optimized with PNGOUT. PNGOUT is a great tool for optimizing the size of web pages or squeezing game content onto mobile devices. That includes pngcrush -brute, optipng -o7, advpng -z4, etc. With the right options, it can often beat other programs by 5-10%. It uses the same deflate compressor I wrote for KZIP.EXE (see below). PNGOUTWin makes it easier to do batch processing and takes full advantage of multi-core CPUs. Supports all features of the command line version (described below), plus more. The professional version of PNGOUT, featuring an easy-to-use GUI. Due to its slow speed, it is best to run it only on small files. It does an exhaustive search (except for block splits) and was designed to optimize compression. With the right options, it can often beat the reference encoder by 3-5%. Ken Silverman's Utility Page Ken Silverman's Utility Page Compression Utilities: FileįLACOUT optimizes the size of.
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