node-imagemagick

Very simple Imagemagick module for Node.

Forked from node-imagemagick: added montage and composite + removed functions that do no directly access the commandline interfaces.

You can install this module using npm:

npm install simple-imagemagick

Requires imagemagick CLI tools to be installed. There are numerous ways to install them. For instance, if you're on OS X you can use Homebrew: brew install imagemagick.

Example

im.identify([
  'IMG_6572.JPG'
], function (err, data){
  if (err) return console.log(err);
  return console.log(data);
});

// -> IMG_6572.JPG JPEG 640x480 640x480+0+0 8-bit sRGB 134KB 0.000u 0:00.000

API

identify(path, callback(err, features))

Identify file at path and return an object features.

Example:

im.identify('kittens.jpg', function(err, features){
  if (err) throw err;
  console.log(features);
  // { format: 'JPEG', width: 3904, height: 2622, depth: 8 }
});

identify(args, callback(err, output))

Custom identification where args is an array of arguments. The result is returned as a raw string to output.

Example:

im.identify(['-format', '%wx%h', 'kittens.jpg'], function(err, output){
  if (err) throw err;
  console.log('dimension: '+output);
  // dimension: 3904x2622
});

convert(args, callback(err, stdout, stderr))

Raw interface to convert passing arguments in the array args.

Example:

im.convert([
  'kittens.jpg',
  '-resize'    , '25x120',
  'kittens-small.jpg'
], function(err, stdout){
  if (err) console.log(err);
  console.log(stdout);
});

montage(args, callback(err, stdout, stderr))

Raw interface to montage passing arguments in the array args.

Example:

im.montage([
  'image1.jpg',
  'image2.jpg',
  'image3.jpg',
  '-tile'      ,  '3x3',
  '-geometry'  ,  '+0+0',
  'outputimage.jpg'
], function(err, stdout){
  if (err) console.log(err);
  console.log(stdout);
});

composite(args, callback(err, stdout, stderr))

Raw interface to montage passing arguments in the array args.

Example:

im.composite([
  '-compose'   , 'Multiply',
  '-gravity'   , 'center',
  'image1.jpg' ,
  'image2.jpg' ,
  'outputimage.jpg'
], function(err, stdout){
  if (err) console.log(err);
  console.log(stdout);
});

convert.path

Path to the convert program. Defaults to "convert".

identify.path

Path to the identify program. Defaults to "identify".

montage.path

Path to the montage program. Defaults to "montage".

composite.path

Path to the composite program. Defaults to "composite".

License (MIT)

Copyright (c) 2010-2012 Rasmus Andersson http://hunch.se/

Simplyfied by Sam Decrock

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.