Digital Watermarking Algorithm for Color Images
نویسندگان
چکیده
منابع مشابه
A Dual Technique for Watermarking Color Digital Images
Principalele cerinţe impuse unui algoritm de watermarking viabil sunt: păstrarea calităţii imaginii gazdă şi rezistenţa marcajului introdus la cât mai multe tipuri de atacuri. În această lucrare autorii propun o metodă duală care combină o tehnică spaţială de marcare şi o tehnică bazată pe o transformare în frecvenţă. Cele două metode au proprietăţi complementare în ceea ce priveşte rezistenţa ...
متن کاملA Color Opponency Watermarking Scheme for Digital Images
In this paper we present a novel watermarking scheme to generalize a previous proposal by the same authors [2]. In that paper to watermark the image amounts to process the colors in the picture as points in the Color Opponency space and to offset each one of them by a random vector. As an extra constraint, in order to avoid picture quality degradation, the offset applied should be such that a c...
متن کاملDigital watermarking based on neural networks for color images
In this paper, we propose a novel digital watermarking technique based on neural networks for color images. Our technique hides an invisible watermark into a color image, and then e!ectively cooperates neural networks to learn the characteristics of the embedded watermark related to the watermarked image. Due to neural networks possessing the learning and adaptive capabilities, the trained neur...
متن کاملA Joint Compression & Watermarking Algorithm for Color Images
Watermarking is highly demanding in recent times for the protection of multimedia data in network environment from illegal copying, violation of copyright, authentication etc, while compression of multimedia signals is essential to save storage space and transmission time. It is also well known the importance and effectiveness of compression techniques to store transmit and retrieve visual info...
متن کاملA Digital Watermarking Algorithm for Color Image Based on DWT
An efficient digital watermark embedding algorithm for color image was presented in this paper, which is based on the discrete wavelet transform (DWT) and the spectral characteristics of human vision system. Firstly, three color separations was performed for color image, and color components of color image were transformed by DWT. Secondly, the embedding position of the watermark was confirmed ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IOSR Journal of Engineering
سال: 2013
ISSN: 2278-8719,2250-3021
DOI: 10.9790/3021-03330109