An original image or other data sequence is modified with an internal marker value, and is communicated (stored and/or transmitted) as one component of a transform having multiple complementary components. The image is restored in a closed form, without iteration, and in some cases without any loss of...http://www.google.fr/patents/US7590293?utm_source=gb-gplus-shareBrevet US7590293 - Non-iterative method to restore image from transformed component data
Non-iterative method to restore image from transformed component data
