SEGMENTATION OF A POSTAL OBJECT DIGITAL IMAGE BY HOUGH TRANSFORM

摘要

The invention concerns a method for segmenting a postal package digital imag e for automatically reading a postal address (AP) on said package, which consists in dividing (20) the image into image blocks of identical size, applying (30) on each image block a processing based on a Hough transform to identify in said image block a preferred direction of the distribution of image points in said block concerned, assembling together (40) image blocks adjacent in the image and having a common preferred direction to define (50) a rectangular zone of interest wherein is inscribed the assembly of said adjacent blocks so that said rectangular zone of interest has a longitudinal edge parallel to said common preferred direction, and applying (60) an algorithm for automatic recognition of addresses on said zone of interest of the image so as to automatically read a postal address on the postal package .