A family of image watermarking schemes based on lossy compression

Herrera-Joancomartí, Jordi; Minguillón, Julià; Megías, David

doi:10.1109/itcc.2003.1197590

Cited by 2 publications

(3 citation statements)

References 14 publications

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“…Furthermore, these parameters also directly determine capacity and, therefore, the amount of modified pixels suitable for hiding the mark and the perceptual capacity, so a more detailed analysis for discovering the relationships between these parameters and the intrinsic image characteristics is also necessary. Finally, in the light of the results obtained in [19], the new watermarking scheme using the JPEG2000 standard is always more robust or at least as robust as the basic scheme using the JPEG standard proposed in [8], mainly because capacity is increased when the same PSNR is used for the modified image for both watermarking schemes.…”

Section: Discussionmentioning

confidence: 87%

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Robust watermarking scheme based on the JPEG2000 standard

Minguillón

Herrera-Joancomartí

Megías

2005

J. Electron. Imaging

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In this paper an empirical evaluation of the lossy compression properties of the JPEG2000 standard for watermarking and fingerprinting purposes is performed. The JPEG2000 standard is used as a basic tool for determining both how and where the embedded watermark should be placed in the image. The original image is slightly modified in order to generate a similar image (but indistinguishable by the observer), and the mark is embedded in the pixels presenting differences between both images. The reconstruction process uses the original and the modified images to detect the embedded mark in any possible attacked image, so the watermarking scheme is non-blind. Previous experiments show that the properties of the resulting watermarking scheme depend strongly on the transformation stage characteristics of the lossy image compression system. Several parameters re-1 lated to the JPEG2000 standard are tested, in addition to the compression ratio determined by the desired bit rate: the wavelet transform, block size, and the number of levels of decomposition for each block. These parameters affect not only the capacity but also the robustness of the watermarking scheme, which depends on the number of differing pixels between the original image and the slightly modified one, and the distribution of such differences. For evaluation purposes, we use the Stirmark benchmark and the classical image corpus set for lossy image compression. We compare the impact on system performance of each of the JPEG2000 standard parameters for several kinds of attacks, namely filtering (including sharpening), JPEG lossy compression, cropping, row and column removal, and a combination of rotation, cropping and scaling. False positive rate is also studied. Results show that the proposed watermarking scheme based on the JPEG2000 standard is robust against most of the classical image manipulation operations and, therefore, suitable for watermarking purposes.Furthermore, the proposed watermarking scheme can be also upgraded to be used as a fingerprinting scheme once the embedded mark is properly coded, due to the use of a collusion scheme.

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Section: Discussionmentioning

confidence: 87%

“…However, previous results [19] show that the JPEG2000 standard is the most suitable lossy compression scheme and therefore, the main reason for replacing the JPEG standard used in [8] with the new JPEG2000 standard.…”

Section: Mark Embeddingmentioning

confidence: 99%

Robust watermarking scheme based on the JPEG2000 standard

Minguillón

Herrera-Joancomartí

Megías

2005

J. Electron. Imaging

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“…On the other hand, Lossy image compression systems try to take advantage of the quality perceived by the observer, reducing the number of bits needed to represent those parts of the image where the human visual system (HVS) is unable to detect all the information. In order to achieve such a goal, lossy image compression systems usually have architecture of four stages: preprocessing, transformation, quantization and coding [9].…”

Section: Image Compressionmentioning

confidence: 99%

Proposed Algorithm for Digital Image Watermarking Survival against JPEG Compression

Hassan¹,

Jaber²

2014

ETJ

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In this paper, a new algorithm is proposed to embed a watermark in digital image such that, it can survive against lossy JPEG (Joint Photographic Experts Group) compression. Analyzing operations are performed on the cover image before and after compression to determine strong locations survival against JPEG compression; these locations are used as host for the watermark. A map is used to embed these strong locations indices; used by the receiver to extract these indices. Fidelity Criteria evaluates errors between the original and cover images, good tests are achieved without perceptual degradation of the transparency of the cover image.

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A family of image watermarking schemes based on lossy compression

Cited by 2 publications

References 14 publications

Robust watermarking scheme based on the JPEG2000 standard

Robust watermarking scheme based on the JPEG2000 standard

Proposed Algorithm for Digital Image Watermarking Survival against JPEG Compression

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