A Novel Watermarking Technique for Tampering Detection in Digital Images
Yang, Chen-Kuei (Ming Chuan University. Department of Computer Science and Information Engineering)
Huang, Chang-Sheng (Ming Chuan University. Department of Computer and Information Management)

Date:	2004
Abstract:	A novel fragile watermarking technique is proposed for hiding logo information into an image by tuning block pixels based on a bitmap parity checking approach. A secure key and a random number generator are used to hide the logo information in a secret, undetectable, and unambiguous way. The characteristics of the mean gray value and the bitmap in a block are exploited for performing the embedding work efficiently and for hiding a logo into an image imperceptibly. The logo can be extracted without referencing the original image. The proposed method is useful for authentication of original digital products. The extracted logo not only can be used to identify tampered locations in digital images but also can resist JPEG compression to a certain degree. Good experimental results have been conducted and resulting images show the feasibility and effectiveness of the proposed method.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Fragile Watermarking ; Bitmap ; Tampering Detection ; Digital Images ; Parity Check ; Marques delicades d'aigua en imatges ; Gràfic o imatge rasteritzada ; Detecció de falsificacions o alteracions ; Imatges digitals ; Control de paritat ; Marcas delicadas de agua en imágenes ; Gráfico o imagen rasterizadas ; Detección de falsificaciones o alteraciones ; Imágenes digitales ; Control de paridad
Published in:	ELCVIA : Electronic Letters on Computer Vision and Image Analysis, V. 3 n. 1 (2004) p. 1-12, ISSN 1577-5097

Adreça original: https://elcvia.cvc.uab.es/article/view/v3-n1-yang-huang
Adreça alternativa: https://raco.cat/index.php/ELCVIA/article/view/31597
DOI: 10.5565/rev/elcvia.65

12 p, 445.7 KB

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