公开(公告)号：US20070154108A1

公开(公告)日：2007-07-05

申请号：US11685338

申请日：2007-03-13

申请人： Lawrence Albertelli ,  David Ii ,  Nina Kung

发明人： Lawrence Albertelli ,  David Ii ,  Nina Kung

IPC分类号： G06K9/38

CPC分类号： G06K9/38 ,  G06K2209/01

摘要： In order to render information contained in images more detectable in the presence of noise, the present invention discloses a system and method to binarize the images in the presence of noise. The method of this invention comprises the steps of applying a dynamic range reducing filter to the digitized image values, obtaining a range reduced image; applying an edge detecting filter to the range reduced image, obtaining a filtered image; and then, adaptively binarizing the digitized image utilizing the corresponding filtered image to obtain an adaptive threshold.

摘要翻译： 为了在存在噪声的情况下使包含在图像中的信息更可检测，本发明公开了一种在存在噪声的情况下二值化图像的系统和方法。 本发明的方法包括以下步骤：对数字化图像值应用动态范围缩小滤波器，获得缩小后的图像; 将边缘检测滤波器应用于缩小后的图像，获得滤波图像; 然后利用相应的滤波图像自适应地二值化数字化图像以获得自适应阈值。