ImageCrop4Mobile is a minimalist image cropping widget with no dependences for mobile web.
var ic = new ImageCrop(document.querySelector('.container'), './mei.jpg', {
/* crop size */
size: 200,
/*
If true, the crop area will be rendered as an ellipse
instead of a rectangle.
*/
circle: true,
onChanged: function(areaInfo) {
console.log(areaInfo);
}
});