grunt-image-normalize

Grunt task to normalize images into a preset size

grunt-image-normalize

Normalize images to some predetermined height and width (https://github.com/dancingplatypus/grunt-imageNormalize).

Inside your grunt.js file add a section named imageNormalize. This section specifies images to normalize and the size of those images.

You will need to have GraphicsMagick installed and available in your path

This defines what files this task will process and should contain key:value pairs.

The key (destination) should be an unique filepath (supports grunt.template) and the value (source) should be a filepath or an array of filepaths (supports minimatch).

This controls how this task (and its helpers) operate and should contain key:value pairs, see options below.

The height of the resulting image in pixels. If the aspect ratio does not match, it will be padded with a transparent background

The width of the resulting image in pixels. If the aspect ratio does not match, it will be padded with a transparent background

If this is false, then any files found in the sources will be flattened. Files of the same name will clobber one another

The offset into the source directory to use when preserving directories

imageNormalize: {
  target: {
    options: {
      height: 640,
      width: 640,
      preserveDirectories: true,
      baseDirectory: "src"
    },
    src: [
        "src/images/**/*.png": "
    ],
    dest: "public/images"
  }
}