Patent Document ID: 8755560
Application ID: 13217460
Patent Status: 1

Claim One:
1. A method for reversible, incremental shredding of an image using a computing device, comprising: determining shredding parameters; generating a shredding map, where the shredding map is a grid of elements that indicates destination locations for at least two of the elements in the grid; and incrementally shredding the image by iteratively mapping blocks of pixels corresponding to grid elements of the shredding map to the destination locations indicated by the shredding map; wherein generating a shredding map further comprises: obtaining a zone map, where the zone map defines at least one zone within the grid; initializing a random number generator using a seed; and iteratively generating a localized pseudo-random offset for a plurality of the grid elements and determining a destination location for each of the plurality of grid elements using the localized pseudo-random offset.