Reducing location map in prediction-based difference expansion for reversible image data embedding

This source preferred by Feng Tian

Authors: Liu, M.L., Seah, H.S., Zhu, C., Lin, W. and Tian, F.

http://www.elsevier.com/locate/sigpro

Journal: Signal Processing

Volume: 92

Pages: 819-828

Publisher: Elsevier

DOI: 10.1016/j.sigpro.2011.09.028

In this paper, we present a reversible data embedding scheme based on an adaptive edge-directed prediction for images. It is known that the difference expansion is an efficient data embedding method. Since the expansion on a large difference will cause a significant embedding distortion, a location map is usually employed to select small differences for expansion and to avoid overflow/underflow problems caused by expansion. However, location map bits lower payload capacity for data embedding. To reduce the location map, our proposed scheme aims to predict small prediction errors for expansion by using an edge detector. Moreover, to generate a small prediction error for each pixel, an adaptive edge-directed prediction is employed which adapts reasonably well between smooth regions and edge areas. Experimental results show that our proposed data embedding scheme for natural images can achieve a high embedding capacity while keeping the embedding distortion low.

This data was imported from DBLP:

Authors: Liu, M., Seah, H.S., Zhu, C., Lin, W. and Tian, F.

Journal: Signal Processing

Volume: 92

Pages: 819-828

This data was imported from Scopus:

Authors: Liu, M., Seah, H.S., Zhu, C., Lin, W. and Tian, F.

Journal: Signal Processing

Volume: 92

Issue: 3

Pages: 819-828

ISSN: 0165-1684

DOI: 10.1016/j.sigpro.2011.09.028

In this paper, we present a reversible data embedding scheme based on an adaptive edge-directed prediction for images. It is known that the difference expansion is an efficient data embedding method. Since the expansion on a large difference will cause a significant embedding distortion, a location map is usually employed to select small differences for expansion and to avoid overflow/underflow problems caused by expansion. However, location map bits lower payload capacity for data embedding. To reduce the location map, our proposed scheme aims to predict small prediction errors for expansion by using an edge detector. Moreover, to generate a small prediction error for each pixel, an adaptive edge-directed prediction is employed which adapts reasonably well between smooth regions and edge areas. Experimental results show that our proposed data embedding scheme for natural images can achieve a high embedding capacity while keeping the embedding distortion low. © 2011 Elsevier B.V.

This data was imported from Web of Science (Lite):

Authors: Liu, M., Seah, H.S., Zhu, C., Lin, W. and Tian, F.

Journal: SIGNAL PROCESSING

Volume: 92

Issue: 3

Pages: 819-828

ISSN: 0165-1684

DOI: 10.1016/j.sigpro.2011.09.028

The data on this page was last updated at 11:59 on June 25, 2019.