Watermarking in conjugate ordered dither block truncation coding images

Authors:
Jing-Ming Guo;Min-Feng Wu;Yong-Chuen Kang
Affiliations:
Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan;Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan;Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
Venue:
Signal Processing
Year:
2009

Citing 6
Cited 3

Digital halftoning

Digital halftoning
Digital halftones by dot diffusion

ACM Transactions on Graphics (TOG)
Improving block truncation coding by line and edge information and adaptive bit plane selection for gray-scale image compression

Pattern Recognition Letters
Modern Digital Halftoning

Modern Digital Halftoning
A Novel Information Hiding Scheme Based on BTC

CIT '04 Proceedings of the The Fourth International Conference on Computer and Information Technology
Image compression by variable block truncation coding with optimalthreshold

IEEE Transactions on Signal Processing

Prediction-based watermarking schemes using ahead/post AC prediction

Signal Processing
Watermarking in halftone images with parity-matched error diffusion

Signal Processing
Image indexing using the color and bit pattern feature fusion

Journal of Visual Communication and Image Representation

Quantified Score

Hi-index	0.08

Visualization

Abstract

In this work, a novel method based on block truncation coding (BTC) and halftoning technique is proposed for embedding watermarks into compressed images. BTC is a simple and efficient image compression technique. However, it yields images of unacceptable quality and significant blocking effects are seen when the block size used increases. A modified technique known as order dither block truncation coding (ODBTC) is proposed to solve the above problems while maintaining the same compression capability. In addition, ODBTC can also be used to embed a watermark into the compressed image. This technique incorporates void-and-cluster method with BTC and ordered dithering to carry out watermarking. Experimental results have indicated that the resulting image quality is better and the algorithm less complex as than traditional BTC. Many forms of attacks are also carried out and confirm the robustness of the proposed methods.