DefinePK

Abstract

In the existing methods of binarization, most of the edge information is lost and the resulted binary image gets blurred. Edges carry most of the information in an image. If we can preserve or retain most of the edge information in a binary image, the image will be informative and look natural. To preserve edge information in a binary image, the edges in the grey image must be enhanced using some effective unsharp masks. We propose a new method of generating unsharp masks, which can be used to enhance the edges in an image effectively. Once an effective unsharp mask is obtained, we apply it on an input grey image to get enhance the edges in the image. The edge enhanced grey image is binarized to give informative binary image. The informative binary images look better and more informative as compared with binary images obtained using by popular Otshu’s method.