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optipng -o7 file.png advdef -z4 file.png pngout /ks file.png deflopt file.png Each of these utilities uses a different, more sophisticated "deflate" compression method variant on the PNG and generally produces a smaller file when run after the other tools. If the smallest result matters, try some experimenting to see what produces the best result.
A PNG file contains a single image in an extensible structure of chunks, encoding the basic pixels and other information such as textual comments and integrity checks documented in RFC 2083. [8] PNG files have the ".png" file extension and the "image/png" MIME media type. [9]
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handshake problem visual proof Image title Proof without words that the number of possible handshakes between n people is the (n−1)th triangular number by CMG Lee.
A variation on a dap greeting, 2009. The practice and term originated among black soldiers during the Vietnam War as part of the Black Power movement. [3] [4] Ninety percent of those imprisoned in the Long Binh Jail during the war were African Americans; it was in the jail that the handshake was created under pan-African nationalist influences.
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