Results 151 to 160 of about 1,433 (182)
Some of the next articles are maybe not open access.
Semi Fragile Watermarking Based on Wavelet Transform
2001Watermarking schemes are traditionally classified into two classes, robust watermarking and fragile watermarking. Recently a third type of watermarking called semi fragile watermarking has been proposed. Using semi fragile watermarking a user can determine whether the image is tampered with or not for individual applications.
openaire +1 more source
Semi-fragile watermarking for color image authentication and recovery
The 3rd International Conference on Information Sciences and Interaction Sciences, 2010In this paper, an efficient semi-fragile watermarking scheme for color image tamper proofing and high-quality recovery is proposed. The scheme is efficient because the validity of image blocks is simply proofed by using a dual-option parity check method and morphological operations.
openaire +1 more source
A novel semi-fragile audio watermarking scheme
The 2nd IEEE Internatioal Workshop on Haptic, Audio and Visual Environments and Their Applications, 2003. HAVE 2003. Proceedings., 2004In this paper, we present a semi-fragile audio watermarking technique which embeds watermark in the discrete wavelet domain of an audio by quantizing the selected coefficients. The quantization parameter used in the algorithm is user-defined. Different value of the quantization parameter affects the robustness of the watermark.
null Ronghui Tu, null Jiying Zhao
openaire +1 more source
Semi-fragile watermarking algorithm based on bi-watermarking technology
2010 International Conference on Computer Application and System Modeling (ICCASM 2010), 2010A semi-fragile watermarking algorithm using bi-watermark is proposed in this paper. When embedding watermark, the original image was decomposed by 3-level discrete wavelet first, and then edge information of the third approximation coefficient was extracted using canny operator.
openaire +1 more source
A New Semi-fragile Watermarking for Audio Authentication
2009 International Conference on Artificial Intelligence and Computational Intelligence, 2009This paper presents a new semi-fragile watermarking algorithm for audio authentication, which takes full advantage of scrambing algorithm. Watermark scrambling algorithm can dispel the pixel space relationship of the binary watermark image. After scrambing, the white pixels and black ones of original watermark image are comparatively orderliness, which
Hong Zhao, Dong-sheng Shen
openaire +1 more source
A Novel Semi-Fragile Document Watermarking Algorithm
2007 International Workshop on Anti-Counterfeiting, Security and Identification (ASID), 2007A novel document watermarking algorithm is proposed. In this algorithm a watermark is embedded into a WORD document by modifying the font color attribute. Experimental results show that this algorithm has good perceptual transparency, large capacity and security. It is robust to format change attacks and the WINRAR compress attack.
Zhang Min-rui, Wang Yi-xuan, Yao Zhan
openaire +1 more source
A Semi-fragile Watermarking for ROI Image Authentication
2008 International Conference on MultiMedia and Information Technology, 2008In this paper, a watermarking algorithm for ROI (Regions of Interesting) authentication and tamper detection is proposed. The watermarking is embedded in the DWT (Discrete Wavelet Transform) coefficients of the ROB (Regions of Background). The algorithm uses a hashing to detect whether the ROI of image is tampered, and then uses the watermarking to ...
openaire +1 more source
A Semi-Fragile Image Watermarking Resisting to JPEG
Journal of Software, 2006Semi-Fragile watermark has attracted attention due to its important role in content authentication for multimedia. In order to differentiate incidental attacks and malicious attacks, semi-fragile watermark must be robust against content-protection image processing.
openaire +1 more source
Semi-Fragile Watermark for the Authentication and Recovery of Tampered Images
2023 5th Novel Intelligent and Leading Emerging Sciences Conference (NILES), 2023Mohammed H. Yacoub +3 more
openaire +1 more source
A semi-fragile reversible watermarking method based on qdft and tamper ranking
Multimedia Tools and Applications, 2023Junlin Ouyang, Ouyang Junlin
exaly