Patent ID: 8326061
Filing Date: 2012-12-04
Classification: H04N

Abstract:
1. A system for fast localized visual degrading of images at a server, comprising: a map creator configured to receive, from a content provider service, a network request to visually degrade one or more regions within an image, the image being represented by original compressed image data that includes one or more blocks, each block having a respective list of coefficient data, wherein the network request includes at least an image identifier that indicates the original compressed image data to be retrieved from a database, the original compressed image data including entropy encoded coefficient data and further configured to generate a map, wherein the map identifies the one or more degradation regions within the entropy encoded coefficient data of the image; and a coefficient list modifier that truncates at least an ordered portion of the coefficient data for each block associated with a degradation region identified in the map, wherein a terminating symbol is either preserved or inserted at the end of each block and the truncated portion is removed from each block and further wherein each block is truncated starting at the end of the list of coefficient data.