Method and apparatus for progressive encoding for text transmission

A method for encoding a text image. In one embodiment the method comprises determining a background color of an image; dividing the image into text pixels and background pixels, each of the background pixels comprising the background color; determining a text color based on colors of the text pixels...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HOBBS DAVID VICTOR
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HANDLING RECORD CARRIERS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A method for encoding a text image. In one embodiment the method comprises determining a background color of an image; dividing the image into text pixels and background pixels, each of the background pixels comprising the background color; determining a text color based on colors of the text pixels; determining a text attribute comprising a luminance profile describing a contour of luminance of a set of the text pixels; generating a binary text mask based on position and luminance of each of the text pixels and the luminance profile; and generating, by a computer, an encoded image comprising the background color, the text color, the binary text mask, and the text attribute.