No defocus. Just blur
Nice idea, but the results look wrong. You basically paint a soft mask to over a blurred image on your photo. This would be cool IF it was a nice lensblur with blooming and bokeh. Also its a blend of two images - you see a sharp one fading into a soft one. Thats not nice. Better would be to fade the blur radius of the effect.
angry head about
Finger Focus, v1.1.2