Patent Document ID: 8326051
Application ID: 12378942

Base Claim:
1. Apparatus for transmitting image information for display within a remote computing environment, comprising: a decomposition filter for determining a text mask from an image, the text mask determined from a text layer and related text-background information extracted from the image and comprising an initial mask and at least one refinement mask; a text mask encoder for encoding the initial mask to generate an initial encoding and encoding a refinement mask of the at least one refinement mask to generate at least one refinement encoding, wherein the text mask comprises: a text pixel mask, a plurality of text pixel colors of pixels associated with the text layer, and a text-background pixel color, wherein: the initial encoding comprises (i) an approximation of the text pixel mask comprising a filtering of the text pixel mask, and (ii) an encoded text pixel color determined from at least a portion of the plurality of the text pixel colors; the at least one refinement encoding comprises (i) mask refinement information for enhancing a decoding of the initial encoding to generate a lossless version of the text pixel mask, and (ii) color refinement information for enhancing the decoding of the initial encoding to generate a plurality of display text pixel colors closer in accuracy to the plurality of text pixel colors than a decoding of the encoded text pixel color; and at least one of the initial encoding or the at least one refinement encoding comprises an encoding of the text-background pixel color; and a network interface for transmitting at least one encoding, the at least one encoding comprising the at least one refinement encoding.

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Claim 5:
5. The apparatus of claim 1 , wherein the decomposition filter determines a picture mask from the image, and further comprising a non-text mask encoder for encoding the picture mask to generate an encoded picture mask, wherein the network interface transmits the encoded picture mask.