im_005001 (1).png is a piece of cake.
But the problem is im_003002 (1).png. Could you tell us how to determine the element shape?
If the element shape is given, the problem will be an another piece of cake. But if not, how we can determine, for example, if "the sine shapes exist 6 time" or "two period of the sine shape exists 3 times" is correct?
