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INCITS/ISO/IEC 15948:2004 (R2019)
Information technology - Computer graphics and image processing - Portable Network Graphics (PNG): Functional specification
ISO/IEC 15948:2004 specifies a datastream and an associated file format, Portable Network Graphics (PNG, pronounced "ping"), for a lossless, portable, compressed individual computer graphics image transmitted across the Internet. Indexed-colour, greyscale, and truecolour images are supported, with optional transparency. Sample depths range from 1 to 16 bits. PNG is fully streamable with a progressive display option. It is robust, providing both full file integrity checking and simple detection of common transmission errors.
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InterNational Committee for Information Technology Standards [incits]
InterNational Committee for Information Technology Standards [incits]