Portable Network Graphics PNG

（重定向自Portable Network Graphic）

example with several types of image content

representation of bit cost per pixel for above PNG file

Portable Network Graphics (PNG /ˈpɪŋ/) is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most used lossless image compression format on the Internet.

单词	Portable Network Graphic
释义	Portable Network Graphic 英语百科 Portable Network Graphics PNG （重定向自Portable Network Graphic） Portable Network Graphics (PNG /ˈpɪŋ/) is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most used lossless image compression format on the Internet.
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