easily crop an html canvas image
#Usage
##With callback
function openImageInNewWindow(dataUri) {
var newWindow = window.open()
newWindow.document.write('<img src="' + dataUri + '"></img>');
};
new CanvasCropper(canvas)
.capture(function(dataUri, canvasData) {
openImageInNewWindow(dataUri);
});
##Without callback
function openImageInNewWindow(dataUri) {
var newWindow = window.open()
newWindow.document.write('<img src="' + dataUri + '"></img>');
};
var canvasCropper = new CanvasCropper(canvas).capture();
function getCanvasCroppedImage() {
openImageInNewWindow(canvasCropper.getCroppedImage());
};
#Demo