Recover Deleted Data from Samsung Cell Phone, Samsung Galaxy S, Samsung Galaxy Note2

Problem on Samsung Cell Phone Data Loss

I accidentally deleted all my photos from the Samsung Galaxy S2, is it possible to recover them? Those deleted photos are very precious. I cannot afford to lose any of them. I have searched online for a solution the whole day, but none of them succeed in restoring my deleted photos. So I post my question here and wish a good method to help with my deleted photo recovery on Samsung phone.