Color Quantization Math
PNG quantization analyzes image histograms and clusters similar RGB color values into a 256-color indexed palette.Try our fast Image Compressor or Convert Image Formats tools.
Technology 5 min read• DocZen Engineering
How Lossless PNG and WebP Image Quantization Works Under the Hood
Learn how mathematical color quantization algorithms reduce 24-bit RGB palettes down to 256 colors to shrink image sizes up to 70%.
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Article FAQs
Does color quantization preserve transparent pixels?
Yes, alpha transparency channels are maintained during palette indexing.