Image Rounder (Scriptographer script)

ImageRounder.js

var rounder = {
	values: {
		radius: 10
	},
	components: {
		radius: {
			label: 'Corner Radius', 
			type : 'number', 
			units: 'point'
		},
		apply: {
			type   : 'button', 
			value  : 'Apply',
			onClick: applyRounder
		}
	}
};

function applyRounder() {
	var images = document.selectedItems;
	var radius = rounder.values.radius;

	for (var i = 0, image; image = images[i]; ++i) {
		var mask = new Path.RoundRectangle(image.bounds, new Size(radius, radius));
		var group = new Group();
		group.appendChild(image);
		group.appendChild(mask);
		group.clipped = true;
		image.clipMask = true;
	}
	
	document.redraw();
}

var palette = new Palette('Image Rounder', rounder.components, rounder.values);