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As the multimedia and internet technologies are growing fast, the transmission of digital media plays an important role in communication. The various digital media like audio, video and images are being transferred through internet. There…

多媒体 · 计算机科学 2010-04-13 P. Mohan Kumar , K. L. Shunmuganathan

With the increasing growth of technology and the entrance into the digital age, we have to handle a vast amount of information every time which often presents difficulties. So, the digital information must be stored and retrieved in an…

多媒体 · 计算机科学 2012-08-15 Kamrul Hasan Talukder , Koichi Harada

In this paper, an efficient fragile blind quad watermarking scheme for image tamper detection and recovery based on lifting wavelet transform and genetic algorithm is proposed. TRLG generates four compact digests with super quality based on…

密码学与安全 · 计算机科学 2018-03-09 Behrouz Bolourian Haghighi , Amir Hossein Taherinia , Amir Hossein Mohajerzadeh

As digital content can be copied easily, Copyright infringement has become a concern nowadays. Providing a solution to prevent the abuse of such contents is very necessary. One of the most common methods to solve this problem is…

图像与视频处理 · 电气工程与系统科学 2021-05-04 Shiva Sattarpoor , Hamid Barati

In recent years, reversible data hiding has attracted much more attention than before. Reversibility signifies that the original media can be recovered without any loss from the marked media after extracting the embedded message. This paper…

密码学与安全 · 计算机科学 2011-02-09 Xu-Ren Luo , Chen-Hui Jerry Lin , Te-Lung Yin

Many image watermarking schemes have been proposed in recent years, but they usually involve embedding a watermark to the entire image without considering only a particular object in the image, which the image owner may be interested in.…

图形学 · 计算机科学 2009-11-05 A. Essaouabi , E. Ibnelhaj , F. Fegragui

Digital watermarking is an effective way to protect copyright. In this paper, a robust watermarking algorithm based on wavelet transformation is proposed which can confirm the copyright without original image. The wavelet transformation…

密码学与安全 · 计算机科学 2012-09-11 Atefeh Elahian , Mehdi Khalili , Shahriar Baradaran Shokouhi

Steganography is an information hiding technique in which secret data are secured by covering them into a computer carrier file without damaging the file or changing its size. The difference between steganography and cryptography is that…

密码学与安全 · 计算机科学 2012-12-27 Youssef Bassil

Image registration is the process of transforming different sets of data into one coordinate system and is required for various remote sensing applications like change detection, image fusion, and other related areas. The effect of…

计算机视觉与模式识别 · 计算机科学 2013-03-28 Arun P. V. , Dr. S. K. Katiyar

Latest diffusion-based methods for many image restoration tasks outperform traditional models, but they encounter the long-time inference problem. To tackle it, this paper proposes a Wavelet-Based Diffusion Model (WaveDM). WaveDM learns the…

计算机视觉与模式识别 · 计算机科学 2024-01-26 Yi Huang , Jiancheng Huang , Jianzhuang Liu , Mingfu Yan , Yu Dong , Jiaxi Lv , Chaoqi Chen , Shifeng Chen

Image Steganography is the process of embedding text in images such that its existence cannot be detected by Human Visual System (HVS) and is known only to sender and receiver. This paper presents a novel approach for image steganography…

多媒体 · 计算机科学 2015-03-03 Khan Muhammad , Jamil Ahmad , Haleem Farman , Muhammad Zubair

Discrete Wavelet Transform (DWT) has been widely explored to enhance the performance of image superresolution (SR). Despite some DWT-based methods improving SR by capturing fine-grained frequency signals, most existing approaches neglect…

计算机视觉与模式识别 · 计算机科学 2025-11-05 Peng Du , Hui Li , Han Xu , Paul Barom Jeon , Dongwook Lee , Daehyun Ji , Ran Yang , Feng Zhu

Radio imaging is rapidly gaining prominence in the design of future communication systems, with the potential to utilize reconfigurable intelligent surfaces (RISs) as imaging apertures. Although the sparsity of targets in three-dimensional…

信息论 · 计算机科学 2024-04-09 Yixuan Huang , Jie Yang , Wankai Tang , Chao-Kai Wen , Shi Jin

Inpainting is the technique of reconstructing unknown or damaged portions of an image in a visually plausible way. Inpainting algorithm automatically fills the damaged region in an image using the information available in undamaged region.…

计算机视觉与模式识别 · 计算机科学 2012-09-14 S. Padmavathi , B. Priyalakshmi. Dr. K. P. Soman

Recently, generative steganography that transforms secret information to a generated image has been a promising technique to resist steganalysis detection. However, due to the inefficiency and irreversibility of the secret-to-image…

密码学与安全 · 计算机科学 2022-03-15 Zhili Zhou , Yuecheng Su , Q. M. Jonathan Wu , Zhangjie Fu , Yunqing Shi

In this paper a self organized legal document/content authentication, copyright protection in composite domain has been proposed without using any external information. Average values of transformed red and green components in frequency…

密码学与安全 · 计算机科学 2012-12-12 Madhumita Sengupta , J. K. Mandal

Haar wavelet is one of the best mathematical tools in image cryptography and analysis. Because of the specific structure, this wavelet has the ability which is combined with other mathematical tools such as chaotic maps. The rational order…

密码学与安全 · 计算机科学 2017-01-16 Sodeif Ahadpour , Yaser Sadra , Meisam Sadeghi

Addressing the security concerns in wireless sensor networks (WSN) is a challenging task, which has attracted the attention of many researchers from the last few decades. Researchers have presented various schemes in WSN, addressing the…

多媒体 · 计算机科学 2015-12-01 Khan Muhammad

Steganography is the art of hiding the fact that communication is taking place, by hiding information in other information. Many different carrier file formats can be used, but digital images are the most popular because of their frequency…

密码学与安全 · 计算机科学 2008-08-12 H. B. Bahar , Ali Aboutalebi

We present a wavelet-based dual-stream network that addresses color cast and blurry details in underwater images. We handle these artifacts separately by decomposing an input image into multiple frequency bands using discrete wavelet…

计算机视觉与模式识别 · 计算机科学 2022-04-28 Ziyin Ma , Changjae Oh