PERSONALIZED MOSAIC PUZZLE SET

摘要

The invention provides a personalized set of mosaic puzzle source tiles and a method for assembling them in their entirety into a recognizable semblance of almost any user selected target picture such as a person's face by following assembly instructions based on an automated analysis of the selected face in terms of appearance characteristics, in particular average brightness, magnitude and direction of a brightness gradient, of the source tiles and supplied to the user on a source tile arrangement chart, comprising a predetermined, limited number of puzzle source tiles of identical size and shape, which are rotationally symmetrical, and marked with indicia providing respectively different tile identification codes providing directional characteristics enabling the source tiles to be assembled together in correct rotational positions. The method includes the step of comparing sums fo mismatches of pairs of source tiles with pairs of target regions and exchanging the positions of the source tiles for each other if such sum of mismatch values would be reduced by the exchange and progressively storing the mismatch values to avoid a need for measurements of any tile in identical position at a later stage of computing.