Patent Document ID: 7783117
Application ID: 11691339
Patent Status: 1

Claim One:
1. A method for compressing an image comprising pixels, the method comprising: identifying edge pixels using gradient pixels identified in a plurality of pixels selected from the image, in a first low-pass filtered set of the plurality of pixels, and in a second low-pass filtered set of the plurality of pixels; determining an edge pixel type for each of the identified edge pixels; using at least some of the identified edge pixels to label each pixel of the plurality of pixels; using the labeled pixels to identify non-background region pixels; generating a foreground image layer comprising the non-background region pixels; generating a background image layer comprising pixels with a background label; generating a mask layer that identifies from which of the foreground and background image layers a pixel should be selected when generating a representation of the plurality of pixels; and compressing the mask layer differently than at least one of the foreground and background image layers.