Journal ArticleDOI
Rotation, scale, and translation resilient watermarking for images
TLDR
It is shown that the watermark is robust to rotation, scale, and translation, and tests examining the watermarks resistance to cropping and JPEG compression.Abstract:
Many electronic watermarks for still images and video content are sensitive to geometric distortions. For example, simple rotation, scaling, and/or translation (RST) of an image can prevent blind detection of a public watermark. In this paper, we propose a watermarking algorithm that is robust to RST distortions. The watermark is embedded into a one-dimensional (1-D) signal obtained by taking the Fourier transform of the image, resampling the Fourier magnitudes into log-polar coordinates, and then summing a function of those magnitudes along the log-radius axis. Rotation of the image results in a cyclical shift of the extracted signal. Scaling of the image results in amplification of the extracted signal, and translation of the image has no effect on the extracted signal. We can therefore compensate for rotation with a simple search, and compensate for scaling by using the correlation coefficient as the detection measure. False positive results on a database of 10 000 images are reported. Robustness results on a database of 2000 images are described. It is shown that the watermark is robust to rotation, scale, and translation. In addition, we describe tests examining the watermarks resistance to cropping and JPEG compression.read more
Citations
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Book
Digital Watermarking
TL;DR: Digital Watermarking covers the crucial research findings in the field and explains the principles underlying digital watermarking technologies, describes the requirements that have given rise to them, and discusses the diverse ends to which these technologies are being applied.
Journal ArticleDOI
An Evaluation of Popular Copy-Move Forgery Detection Approaches
TL;DR: This paper created a challenging real-world copy-move dataset, and a software framework for systematic image manipulation, and examined the 15 most prominent feature sets, finding the keypoint-based features Sift and Surf as well as the block-based DCT, DWT, KPCA, PCA, and Zernike features perform very well.
Proceedings ArticleDOI
A survey of digital image watermarking techniques
TL;DR: This paper presents a detailed survey of existing and newly proposed steganographic and watermarking techniques and classify the techniques based on different domains in which data is embedded.
Journal ArticleDOI
Robust and secure image hashing
TL;DR: A novel algorithm for generating an image hash based on Fourier transform features and controlled randomization is developed and it is shown that the proposed hash function is resilient to content-preserving modifications, such as moderate geometric and filtering distortions.
Proceedings ArticleDOI
An efficient and robust method for detecting copy-move forgery
TL;DR: The proposed features can detect duplicated region in the images very accurately, even when the copied region was undergone severe image manipulations and use of counting bloom filters offers a considerable improvement in time efficiency at the expense of a slight reduction in the robustness.
References
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TL;DR: It is argued that insertion of a watermark under this regime makes the watermark robust to signal processing operations and common geometric transformations provided that the original image is available and that it can be successfully registered against the transformed watermarked image.
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Journal ArticleDOI
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T. K. Boehme,Ronald N. Bracewell +1 more