Patent ID: 8300928
Filing Date: 2012-10-30
Classification: G06K

Abstract:
1. A method for automatically locating a signature field in a target region of a digital image captured by a barcode reader, the target region having boundaries defined by multiple graphical delimiters in the digital image, the method, comprising: adjusting image quality of the digital image by performing the following steps: generating a search pattern comprising multiple search locations that spatially correspond with pixels in the digital image; determining a color of multiple search pixels in the binary-colored image that correspond or substantially correspond in location to the multiple search locations; identifying at least one black pixel in the multiple search pixels as a candidate pixel that is a part of one of multiple graphical delimiters; analyzing colors of neighboring pixels of the candidate pixel to compute a weight value of the candidate pixel; and saving the candidate pixel as a located graphical delimiter of multiple graphical delimiters if the weight value of the candidate pixel exceeds or approximates a weight threshold.