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wiki/structured/cli.imagemagick.org
Gabriel Arazas ae3656f006 Make the command line notes consistent 
Just the title anyways. It makes easier to find aside from the file name
and also makes it clear in case I refer to them from other documents.
2021-06-20 10:22:13 +08:00

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Command line: ImageMagick

The swiss army knife for picture manipulation in the command line. For future reference, this mainly use v7 which has Git-style interface (which is way better, IMO).

Synopsis 

magick [subcommand [subcommand_options...]]

Subcommands

  • convert - resize images, convert between formats, apply filter effects
  • identify - print information on the image
  • mogrify - similar to convert except modifies the original file

Examples

A comprehensive tool calls for a comprehensive introduction.

Resize an image by half 

magick resize $INPUT -resize 50% $OUTPUT

You can find out various geometry options from the documentation.

Print the information 

magick identify $INPUT

Use ImageMagick as a color picker

You can use any tool that can pipe an image to other tools.

maim --select --shader crosshair --tolerance 0 --hidecursor | magick convert - -resize 1x1\! -format '%[hex:p{0,0}]' info:-