Robust Image Watermarking Algorithm Based on ASIFT against Geometric Attacks
نویسندگان
چکیده
منابع مشابه
A Robust Digital Image Watermarking Scheme Based on DWT
In this paper a wavelet-based logo watermarking scheme is presented. The logo watermark is embedded into all sub-blocks of the LLn sub-band of the transformed host image, using quantization technique. Extracted logos from all sub-blocks are merged to make the extracted watermark from distorted watermarked image. Knowing the quantization step-size, dimensions of logo and the level of wavelet tra...
متن کاملA Robust Digital Image Watermarking Scheme Based on DWT
In this paper a wavelet-based logo watermarking scheme is presented. The logo watermark is embedded into all sub-blocks of the LLn sub-band of the transformed host image, using quantization technique. Extracted logos from all sub-blocks are merged to make the extracted watermark from distorted watermarked image. Knowing the quantization step-size, dimensions of logo and the level of wavelet tra...
متن کاملA Robust Zero-watermarking Algorithm Against Geometric Attacks with Perceptual Hashing
Taking into account the information security problem in medical image, the paper put forward a new robust zerowatermarking algorithm with three-dimensional (3D) discrete Fourier transform (DFT) and perceptual hashing. The medical volume data was made by 3D DFT. The zero-watermarking algorithm selected the real part of 3D DFT coefficients (4*4*4) to generate the watermarking extraction key seque...
متن کاملA digital robust image watermarking against desynchronization attacks
In this paper, a robust image watermarking technique using support vector regression (SVR) and particle swarm optimization is introduced to protect intellectual property rights of the gray images in discrete cosine transform domain against a variety of desynchronization attacks. After the division of the original image to 8 × 8 non-overlapping blocks, frequency coefficients of each block are fo...
متن کاملOblivious Image Watermarking Robust against Scaling and Geometric Distortions
Watermarking stays the main technical safeguard of electronic copyright. This paper presents the first public-domain oblivious watermarking scheme for images which survives scaling and geometric distortion attacks. Previous proposals are either proprietary, nonoblivious or require scaling or geometric distortion to be undone prior to mark recovery, which may not be practical in oblivious waterm...
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: Applied Sciences
سال: 2018
ISSN: 2076-3417
DOI: 10.3390/app8030410