图片分析简介
元数据(Metadata)
例题
GIF89a
!!!"""###$$$%%%&&&'''((()))***+++,,,---...///000111222333444555666777888999:::;;;<<<===>>>???@@@AAABBBCCCDDDEEEFFFGGGHHHIIIJJJKKKLLLMMMNNNOOOPPPQQQRRRSSSTTTUUUVVVWWWXXXYYYZZZ[[[\\\]]]^^^___```aaabbbcccdddeeefffggghhhiiijjjkkklllmmmnnnooopppqqqrrrssstttuuuvvvwwwxxxyyyzzz{{{|||}}}~~~
4d494945767749424144414e42676b71686b6947397730424151454641415343424b6b776767536c41674541416f4942415144644d4e624c3571565769435172
NETSCAPE2.0
ImageMagick
...像素值转化

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