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Gi is a library for manipulating Graphics Interfacing. Use utility mogrify, identify, ... of GraphicsMagick to resize, draw on base images....

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Gi

Elixir CI Hex.pm Hex.pm

Gi is a library for manipulating Graphics Interfacing. Use utility mogrify, identify, ... of GraphicsMagick to resize, draw on base images....

Requirements

You must have GraphicsMagick installed of course.

Features

Utilities for image:

  • Resize image to width x height with ratio (WxH)
Gi.open("example.jpg") # example.jpg (300x200)
|> Gi.gm_mogrify(resize: "200x100")
|> Gi.save() # => example.jpg (150x100)
  • Resize image to width x height (WxH!)
Gi.open("example.jpg") # example.jpg (300x200)
|> Gi.gm_mogrify(resize: "200x100!")
|> Gi.save() # => example.jpg (200x100)
  • Format image to jpg, png, webp, ...
Gi.open("example.jpg")
|> Gi.gm_mogrify(format: "webp")
|> Gi.save() # => create new file "example.webp"
  • Draw text on image text x,y 'string'
Gi.open("example.jpg")
|> Gi.gm_mogrify(draw: "text 150,150 'Theta.vn'")
|> Gi.save() 
  • Draw image on image "image Over x,y,w,h file"
Gi.open("example.jpg")
|> Gi.gm_mogrify(draw: "image Over 100,100,200, 200 dir/logo.a")
|> Gi.save()
  • Multi utilities
Gi.open("example.jpg")
|> Gi.gm_mogrify([resize: "300x200", draw: "text 150,150 'Theta.vn'"])
|> Gi.save()
  • Combine multiple images into one
Gi.open("frame.png")
|> Gi.gm_composite(["background.jpg","result.png"])

Installation

If available in Hex, the package can be installed by adding gi to your list of dependencies in mix.exs:

def deps do
  [
    {:gi, "~> 0.1.0"}
  ]
end

Documentation https://hexdocs.pm/gi.

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Gi is a library for manipulating Graphics Interfacing. Use utility mogrify, identify, ... of GraphicsMagick to resize, draw on base images....

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