Invention Grant
US08855414B1 Apparatus and method for encoding an image generated in part by graphical commands 有权
用于编码部分由图形命令产生的图像的装置和方法

Apparatus and method for encoding an image generated in part by graphical commands
Abstract:
A method and apparatus for encoding an image is disclosed. In one embodiment, the method comprises identifying initial pixels within a spatially defined sub-section, the initial pixels at least a defined number of pixels each comprising a first color; identifying background pixels, the background pixels comprising the first color and in a first defined spatial proximity to the initial pixels; identifying text pixels, the text pixels contrasting the first color and in a second defined spatial proximity to the background pixels; identifying picture pixels as all pixels other than the background pixels and the text pixels; generating a background encoding comprising (i) spatial locations of the background pixels and (ii) a lossless encoding of the first color; generating a text encoding identifying a spatial location and a lossless color encoding of each of the text pixels; and generating a picture encoding comprising a lossy encoding of the picture pixels.
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