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Png

If gnuplot was configured to use the libgd library for png/gif/jpeg output, then it can also be used to read these same image types as binary files. You can use an explicit command
     plot 'file.png' binary filetype=png

Or the file type will be recognized automatically from the extension if you have previously requested
     set datafile binary filetype=auto

See also binary (p. [*]).


2011-12-23