Patent ID: 8189781
Filing Date: 2012-05-29
Classification: G09C,H04N

Abstract:
1. A method comprising: (A) obtaining an original digital image, said original digital image having a size consisting of a first number of pixels, said original digital image having a horizontal resolution and a vertical resolution; (B) based at least in part on said size of said original image, determining a pixel block size, by: (C) based on said pixel block size as determined in (B), dividing the original image into a plurality of pixel blocks; (D) forming a scrambled image by rearranging the plurality of pixel blocks into a corresponding plurality of rearranged pixel blocks, wherein each pixel block has an original position in the original image and a rearranged position in the scrambled image; (E) while forming the scrambled image in (D), maintaining a map of the rearranged positions of the plurality of rearranged pixel blocks relative to their corresponding original positions in the original image; and (F) using said map to form a markup language description to enable display of the original image from the scrambled image, wherein the horizontal resolution of the pixel block and the vertical resolution of the pixel block are selected, at least in part, to reduce the size of the markup language description.