opaque #

Browserify module for detecting if an image or canvas element has transparent
pixels.

Installation ##

Using NPM and Browserify:

`` bash
npm install opaque
`

As a component:

` bash
component install hughsk/opaque
`

Usage ##

opaque(element)

Returns false if transparent, or true if not.

opaque.transparent(element)

The opposite of opaque: true if transparent, false if not.

` javascript
var opaque = require('opaque')
, transparent = require('opaque').transparent

var brick = new Image
brick.src = '/brick.png'
brick.onload = function() {
opaque(brick) // true
transparent(brick) // false
};

var glass = new Image
glass.src = '/glass.png'
glass.onload = function() {
opaque(glass) // false
transparent(glass) // true
};
``

Note that an image must be fully loaded before being checked.