Data hiding in binary line drawing images
Hongbin Zhang, Man Liu · 2008
A method for embedding data in binary line drawing images is proposed. Under the condition that the width of digital lines is greater than or equal to three, the method uses the constraints of line drawings, and represents the digital lines by using a set of 3times3 rational meshes. Then the meshes whose central pixels are flippable are selected out to embed and extract data. Compared with other watermarking methods for binary images, the proposed method can maintain higher quality of the host image after data hiding.