FPGA based Implementation of Embedding and Decoding Architecture for Binary Watermark by Spread Spectrum scheme in Spatial Domain
نویسندگان
چکیده
-With the increasing influence of digital network and communication, armour from perilous intrusion and corruption of information (e.g. image, video, speech etc) during transmission is a paramount issue. To protect the image and video from the unauthenticated access or tampering, watermarking is adopted as a solution. In this paper we have proposed a spatial domain Spread Spectrum (SS) watermarking scheme using binary watermark which effectively eliminates security problem while increasing robustness and enhancing perceptual quality of watermarked image. Hardware implementation of the proposed digital image watermarking algorithm using Field Programmable Gate Array (FPGA) has been accomplished. Keywords--FPGA, Binary Watermark, Spatial Domain, Spread Spectrum, Digital Image Watermarking
منابع مشابه
Spread Spectrum Watermarking: Implementation in FPGA
Spread spectrum (SS) watermarking has proven to be efficient, robust and cryptographically secure. Each bit of watermark information is embedded over wide spectrum of the host signal based on spectrum spreading concept of SS modulation in digital communication and can easily be integrated with many existing data transmission scheme. This has made SS watermarking method more attractive during re...
متن کاملOptimum decoder for multiplicative spread spectrum image watermarking with Laplacian modeling
This paper investigates the multiplicative spread spectrum watermarking method for the image. The information bit is spreaded into middle-frequency Discrete Cosine Transform (DCT) coefficients of each block of an image using a generated pseudo-random sequence. Unlike the conventional signal modeling, we suppose that both signal and noise are distributed with Laplacian distribution, because the ...
متن کاملA novel Generalized Arnold Transform-based Zero-Watermarking Scheme
In this paper, based on generalized Arnold Transform (GAT), a novel image zero-watermarking scheme with spread spectrum and despreading (SSD) techniques is presented by using spatial domain of watermark image. GAT is obtained by adding number of variables, and SSD is introduced from communication field to deal with pixels of watermark image. First of all, GAT is used to scramble an original wat...
متن کاملProposing an effective approach for Network security and multimedia documents classically using encryption and watermarking
Local binary pattern (LBP) operators, which measure the local contrast within a pixel's neighborhood, successfully applied to texture analysis, visual inspection, and image retrieval. In this paper, we recommend a semi blind and informed watermarking approach. The watermark has been built from the original image using Weber Law. The approach aims is to present a high robustness and imperceptibi...
متن کاملTechniques to Provide Robust and High Capacity Data Hiding of ID Badges for Increased Security Requirements
In this paper we propose a new high capacity, low energy requirement, and robust spread spectrum watermark approach for still images. This approach uses an orthogonalisation scheme to generate a set of binary spread spectrum carriers that are able to minimize the interference of the original image on the watermark information detection, so that, more than two hundred bit capacity in a one squar...
متن کامل