An improvement of diamond encoding using characteristic value positioning and modulus function

作者：Chen Jeanne^*; Shiu Chih Wei; Wu Mei Chen

来源：Journal of Systems and Software, 2013, 86(5): 1377-1383.

DOI：10.1016/j.jss.2012.12.053

• Diamond encoding
• Diamond characteristics
• Exploiting modification direction

The diamond encoding technique controls payload and image quality by a k value. Although a small increase in k can increase payload, it also increases image distortion. In this paper, we proposed an improvement scheme to the diamond encoding technique for reducing image distortion during a k change. Another aim is to increase payload size. A square matrix conversion of the diamond matrix is used to lower the MSE values in high payload when k = 3. A lower MSE reduces image distortion. In low payload, that is when k changes from 1 to 2, a one dimension matrix modulus is used to reduce image distortion. Experimental results showed that payload may be increased while image quality is not significantly reduced.

• 出版日期2013-5