Subjective tests, which were conducted according to the ITU BT.500 standard, have shown that the original JPEG photo and the recompressed JPEGmini photo cannot be distinguished by average users when displayed at 100% zoom on a computer monitor, or when printed at 200 DPI on photo paper.
So far, 18 patent applications have been submitted for various technologies included in JPEGmini, and two papers describing the technology have been accepted and presented at the prestigious SPIE Electronic Imaging 2011 conference in San Francisco.