png-image

PNG-Image
==========

Crop and save PNGs

##Installation

Install this module locally with the following command:
``shell
npm install png-image
`

Save to dependencies or dev-dependencies:
`shell
npm install --save png-image
npm install --save-dev png-image
`

##Usage

Can run node-style (callbacks) or with promises as below.

Example:
`javascript
var PNGImage = require('png-image')

var pngImage = new PNGImage({
imagePath: './imageA.png',
imageOutputPath: "./imageB.png",
cropImage: {x: 0, y: 0, width: 40, height: 40}
});

pngImage.run(function (err) {
if (err) {
console.log(err);
} else {
console.log("OK");
}
});

pngImage.runWithPromise().then(function () {
console.log("OK");
});
`

###Parameters:

* `imagePath` Defines path of the image input file.
* `imageOutputPath` Defines path of the image output file.
* `imageCrop`` Cropping object for image (default: none).

###Dependencies
* pngjs
* promise

##License

The MIT License

Copyright 2016 Koola.