MIRoundedImage

func roundImage(#image: UIImage, withSize size: CGSize, withStorkeColor strokeColor: UIColor, withCornerRaduis raduis: CGFloat, withBorderWidth borderWidth: CGFloat) -> UIImage {
        UIGraphicsBeginImageContextWithOptions(image.size, false, 0)
        
        let borderWidth: CGFloat = borderWidth
        let cornerRadius:CGFloat = raduis
        
        let multiplier:CGFloat = image.size.height/size.height > image.size.width/size.width ?
            image.size.height/size.height :
            image.size.width/size.width
        
        let borderWidthMultiplied:CGFloat = borderWidth * multiplier
        let cornerRadiusMultiplied:CGFloat = cornerRadius * multiplier
        
        UIGraphicsBeginImageContextWithOptions(image.size, false, 0)
        
        let path = UIBezierPath(roundedRect: CGRectInset(CGRectMake(0, 0, image.size.width, image.size.height),
            borderWidthMultiplied / 2, borderWidthMultiplied / 2), cornerRadius: cornerRadiusMultiplied)
        
        let context = UIGraphicsGetCurrentContext()
        
        CGContextSaveGState(context)
        // Clip the drawing area to the path
        path.addClip()
        
        // Draw the image into the context
        image.drawInRect(CGRectMake(0, 0, image.size.width, image.size.height))
        CGContextRestoreGState(context)
        
        // Configure the stroke
        strokeColor.setStroke()
        path.lineWidth = borderWidthMultiplied
        
        // Stroke the border
        path.stroke()
        
        return UIGraphicsGetImageFromCurrentImageContext();
    }