Process for binarization of image recording that is received by optical sensor, involves expressing input data at pixel coordinate and separating from line image depending on local constraints, characters and/or text from background

摘要

The process (1) involves deriving a line image as input data for an image picked up by a line amplifier unit (2). The input data is expressed (3) at a pixel coordinate and separated (4) from the line image by a globally optimal energy process depending on local constraints, characters and/or a text from a background. The character and/or text are represented by a class that is represented by another class of the background. A stroke-width-transformation is used for creation of the line image.