A hierarchical digital watermarking method for image tamper detection and recovery

Lin, Phen Lan; Hsieh, Cheng‐En; Huang, Po-Whei

doi:10.1016/j.patcog.2005.02.007

Cited by 255 publications

(116 citation statements)

References 16 publications

Supporting

Mentioning

115

Contrasting

Unclassified

Order By: Relevance

“…These requirements are being achieved by different conventional measures, which are thought to be incapable of providing the required security of the electronic radiology information in the PACS/RIS-based teleradiology [5][6][7]. On the other hand, recent studies show the possibility of using digital watermarking for improving security in teleradiology [8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

A Review of Medical Image Watermarking Requirements for Teleradiology

2012

View full text Add to dashboard Cite

Teleradiology allows medical images to be transmitted over electronic networks for clinical interpretation and for improved healthcare access, delivery, and standards. Although such remote transmission of the images is raising various new and complex legal and ethical issues, including image retention and fraud, privacy, malpractice liability, etc., considerations of the security measures used in teleradiology remain unchanged. Addressing this problem naturally warrants investigations on the security measures for their relative functional limitations and for the scope of considering them further. In this paper, starting with various security and privacy standards, the security requirements of medical images as well as expected threats in teleradiology are reviewed. This will make it possible to determine the limitations of the conventional measures used against the expected threats. Furthermore, we thoroughly study the utilization of digital watermarking for teleradiology. Following the key attributes and roles of various watermarking parameters, justification for watermarking over conventional security measures is made in terms of their various objectives, properties, and requirements. We also outline the main objectives of medical image watermarking for teleradiology and provide recommendations on suitable watermarking techniques and their characterization. Finally, concluding remarks and directions for future research are presented.

show abstract

Section: Introductionmentioning

confidence: 99%

A Review of Medical Image Watermarking Requirements for Teleradiology

2012

View full text Add to dashboard Cite

show abstract

“…The fragile watermarking techniques, which not only locate the fake region, but also recover the tampering region, are more practically and comprehensively applied. To accurately identify the tampered blocks, Lin et al [6] proposed a hierarchical digital watermarking scheme for tamper detection and recovery, and he used a 3-level hierarchical structure to locate the tampered regions, but there was no second chance to recover tampered blocks whose watermark bits embedded in the other block were destroyed. To overcome this problem, Qian [7] hided the restoration-bits into the 3-LSB layers of the host image to improve the reconstructed image quality, the quality of recovered image was improved, but the quality of watermarked image decreased due to the increased watermark payload.…”

Section: Introductionmentioning

confidence: 99%

Stereo Image Watermarking Method for Authentication with Self-Recovery Capability

Wang¹,

Jiang²,

Chen³

et al. 2013

Proceedings of the 2013 International Conference on Advanced Computer Science and Electronics Information

View full text Add to dashboard Cite

Abstract-To address issues of content authenticity verification and integrity protection, a stereo image watermarking method based disparity is proposed. Firstly, the stereo image blocks are classified into eight types according to the smoothness of it, and the alterable-length recovery bits are generated. The recovery bits include foremost bits, detail bits, type bits and disparity bits. Foremost bits are embedded twice for improving quality of recovery. Moreover, disparity is embedded as well for recovery further. At the receiver side, recovery bits extracted from watermarked stereo image not only localize tampered regions, but also recover them. The visual quality of the watermarked stereo image is imperceptible due to the low embedding volume. Experimental results show that the proposed method can detect tamper precisely and provide high restoration quality.

show abstract

“…This tampered image can mislead decision making in the case of courtroom evidence, insurance claims, and journalistic photography. Many image authentication methods through fragile watermarking have been proposed [1,2,3]. Among them, several methods [2,3] not only can detect the tampered areas but also can recover the shape previous to damage.…”

Section: Introductionmentioning

confidence: 99%

“…Many image authentication methods through fragile watermarking have been proposed [1,2,3]. Among them, several methods [2,3] not only can detect the tampered areas but also can recover the shape previous to damage. In particular using the recovery property we can know the intention of attackers and we argue that it is enough to obtain the recognizable image.…”

Section: Introductionmentioning

confidence: 99%

Watermarking for tamper detection and recovery

Park

Kang

Yamaguchi

et al. 2008

IEICE Electron. Express

View full text Add to dashboard Cite

Abstract:The goal of this paper is to detect and recover the tampered regions of the digital image. To achieve this goal, the LSB and the second LSB of the spatial domain was selected to embed the watermark. In particular, the watermark consists of three parts: 1) recovery code made by the small sized image of the original, 2) verification code made by the variance value of a block (4 × 4) in the original image (only six MSBs, 1 st ∼ 6 th MSB) and 3) owner code made by a binary logo image. By using this special watermark, we can detect and recover the tampered regions.

show abstract

A hierarchical digital watermarking method for image tamper detection and recovery

Cited by 255 publications

References 16 publications

A Review of Medical Image Watermarking Requirements for Teleradiology

A Review of Medical Image Watermarking Requirements for Teleradiology

Stereo Image Watermarking Method for Authentication with Self-Recovery Capability

Watermarking for tamper detection and recovery

Contact Info

Product

Resources

About