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Linux Journal: PNG: The Definitive Guide [Book Review]

Dec 21, 1999, 19:20 (4 Talkback[s])
(Other stories by Michael J. Hammel)

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"PNG--The Definitive Guide is Greg Roelofs' description of the design and use of PNG. PNG is a specification for a raster image file format. Greg's text, published by O'Reilly, is a clear and thorough exploration of the topic. Ranging from the early history of the design to detailed programming information on chunks and gamma correction to application support for this new format, the text is a complete descriptive volume on the subject."

"Pronounced "ping" according to Greg (although I have a hard time not vocalizing the three letters separately), PNG has evolved over the past four years in response to limitations in design and licensing of the older GIF format. Greg is uniquely qualified to describe the format and tell its tale of evolution. He was there when Thomas Boutell first announced the project, and has written numerous articles on the subject--including being one of the few contributing authors I've ever had to my "Graphics Muse" column in Linux Gazette ("

"The text is divided into three parts: Using PNG, The Design of PNG and Programming with PNG. The specification for PNG is platform-independent, and Greg keeps true to this philosophy with this text. It covers everything from Linux to Windows to BeOS to OS/2; however, the first section does finish with a focus on Macromedia's Fireworks 1.0, a decidedly non-Linux application."

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