Wet Paper Coding for Watermarking of Binary Images

TL;DR

This paper introduces a novel watermarking technique for binary images using wet paper codes, enabling data embedding and extraction without the original image, and addressing irregular embedding capacities through shuffling.

Contribution

It presents a new watermarking method based on wet paper codes that improves embedding flexibility and allows extraction without the original image.

Findings

Successful embedding of data in various binary images

Effective handling of irregular embedding capacities

Watermarked images remain visually intact

Abstract

We propose a new method to embed data in binary images, including scanned text, figures, and signatures. Our method relies on the concept of wet paper codes. The shuffling before embedding is used in order to equalize irregular embedding capacity from diverse areas in the image. The hidden data can be extracted without the original binary image. We illustrate some examples of watermarked binary images after wet paper coding.