Small utility to easily and efficiently create thumbnails using GraphicsMagick.
npm install thumbnailSmall utility to easily and efficiently create thumbnails using GraphicsMagick.
Get a 100x100 thumbnail of /path/to/originals/picture.jpg and store it in /path/to/thumbnails
var Thumbnail = require('thumbnail');
var thumbnail = new Thumbnail('/path/to/originals', '/path/to/thumbnails');
thumbnail.ensureThumbnail('picture.jpg', 100, 100, function (err, filename) {
// "filename" is the name of the thumb in '/path/to/thumbnails'
});
Get a thumbnail of 100 pixels wide, height auto and store it in /path/to/thumbnails
var Thumbnail = require('thumbnail');
var thumbnail = new Thumbnail('/path/to/originals', '/path/to/thumbnails');
thumbnail.ensureThumbnail('picture.jpg', 100, null, function (err, filename) {
// "filename" is the name of the thumb in '/path/to/thumbnails'
});
Get a thumbnail of 100 pixels high, width auto and store it in /path/to/thumbnails
var Thumbnail = require('thumbnail');
var thumbnail = new Thumbnail('/path/to/originals', '/path/to/thumbnails');
thumbnail.ensureThumbnail('picture.jpg', null, 100, function (err, filename) {
// "filename" is the name of the thumb in '/path/to/thumbnails'
});
$ npm install thumbnail
Construct a thumbnail object that operates on the provided paths. rootOriginals is the path where the original
files can be found and rootThumbnails is the path where thumbnails can be found and created.
supportedImageTypes is an optional array of supported images. Make sure your GraphicsMagick installation supports these types.
Create a thumbnail of filename with the requested width and height. filename should exist
in the rootOriginals path provided to the constructor. If a thumbnail with these
dimensions already exists, no new file is created and the filename of the existing thumbnail
is returned via the callback.
width and height should be the requested thumbnail size in pixels. When only width is provided, the height of the thumbnail
will be aspect ratio. When only height is provided, the width of the thumbnail will be aspect ratio.
cb is called with Error or null as the first parameter. The string of the thumbnails filename
as the second parameter. And as the third parameter a boolean if the thumb has just been created
or if it already existed (in that case it will be false).
path to original pictures as given to the constructor
path to thumbnails as given to the constructor
supported image types as given to the constructor
GraphicksMagick must be installed on your system and the gm command should be available in the node environment.
MIT, see LICENSE