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Because Facebook is available on hundreds of millions of desktop and mobile computing platforms around the world and because it is available on many different kinds of platforms (from desktops and laptops running Windows, Unix, or OS X to…

Multimedia · Computer Science 2015-06-09 Jason Hiney , Tejas Dakve , Krzysztof Szczypiorski , Kris Gaj

Applying encryption technology to image retrieval can ensure the security and privacy of personal images. The related researches in this field have focused on the organic combination of encryption algorithm and artificial feature…

Multimedia · Computer Science 2022-08-26 Zhixun Lu , Qihua Feng , Peiya Li

In recent years, several encryption algorithms have been proposed to protect digital images from cryptographic attacks. These encryption algorithms typically use a relatively small key space and therefore, provide safe, especially if they…

Cryptography and Security · Computer Science 2012-09-24 Ahmed Bashir Abugharsa , Abd Samad Bin Hasan Basari , Hamida Almangush

As virtual and physical identity grow increasingly intertwined, the importance of privacy and security in the online sphere becomes paramount. In recent years, multiple news stories have emerged of private companies scraping web content and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Ahsi Lo , Gabriella Pangelinan , Michael C. King

The existing image embedding networks are basically vulnerable to malicious attacks such as JPEG compression and noise adding, not applicable for real-world copyright protection tasks. To solve this problem, we introduce a generative deep…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Qichao Ying , Hang Zhou , Xianhan Zeng , Haisheng Xu , Zhenxing Qian , Xinpeng Zhang

In this paper, we propose a privacy-preserving image-retrieval scheme using a codebook generated by using a plain-image dataset. Encryption-then-compression (EtC) images, which were proposed for EtC systems, have been used in conventional…

Image and Video Processing · Electrical Eng. & Systems 2021-09-07 Kenta Iida , Hitoshi Kiya

Image Compression plays a very important role in image processing especially when we are to send the image on the internet. The threat to the information on the internet increases and image is no exception. Generally the image is sent on…

Multimedia · Computer Science 2010-03-25 Deepak Aggarwal , Kanwalvir Singh Dhindsa

Information security is one of the most challenging problems in today's technological world. In order to secure the transmission of secret data over the public network (Internet), various schemes have been presented over the last decade.…

Multimedia · Computer Science 2016-01-08 Khan Muhammad , Jamil Ahmad , Muhammad Sajjad , Muhammad Zubair

Image applications have been increasing in recent years.Encryption is used to provide the security needed for image applications. In this paper, we classify various image encryption schemes and analyze them with respect to various…

Cryptography and Security · Computer Science 2011-12-06 Jolly Shah , Vikas Saxena

It is known that JPEG images uploaded to social networks (SNs) are mostly re-compressed by the social network providers. Because of such a situation, a new image identification scheme for double-compressed JPEG images is proposed in this…

Image and Video Processing · Electrical Eng. & Systems 2019-01-30 Kenta Iida , Hitoshi Kiya

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…

Multimedia · Computer Science 2010-04-13 P. Mohan Kumar , K. L. Shunmuganathan

In the case that images are shared via social networking services (SNS) and cloud photo sharing services (CPSS), it is known that the JPEG images uploaded to the services are often re-compressed and resized by the providers. Because of such…

Image and Video Processing · Electrical Eng. & Systems 2018-09-17 Kenta Iida , Hitoshi Kiya

The security of learnable image encryption schemes for image classification using deep neural networks against several attacks has been discussed. On the other hand, block scrambling image encryption using the vision transformer has been…

Cryptography and Security · Computer Science 2022-07-19 Tatsuya Chuman , Hitoshi Kiya

With increasing use of mobile devices, photo sharing services are experiencing greater popularity. Aside from providing storage, photo sharing services enable bandwidth-efficient downloads to mobile devices by performing server-side image…

Cryptography and Security · Computer Science 2013-02-21 Moo-Ryong Ra , Ramesh Govindan , Antonio Ortega

Image retrieval systems help users to browse and search among extensive images in real-time. With the rise of cloud computing, retrieval tasks are usually outsourced to cloud servers. However, the cloud scenario brings a daunting challenge…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Qihua Feng , Peiya Li , Zhixun Lu , Chaozhuo Li , Zefang Wang , Zhiquan Liu , Chunhui Duan , Feiran Huang

The digital image manipulation and advancements in Generative AI, such as Deepfake, has raised significant concerns regarding the authenticity of images shared on social media. Traditional image forensic techniques, while helpful, are often…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Chen-Hsiu Huang , Ja-Ling Wu

In this paper, we propose an extraction method of HOG (histograms-of-oriented-gradients) features from encryption-then-compression (EtC) images for privacy-preserving machine learning, where EtC images are images encrypted by a block-based…

Computer Vision and Pattern Recognition · Computer Science 2019-04-30 Masaki Kitayama , Hitoshi Kiya

In the last decade, Social Networks (SNs) have deeply changed many aspects of society, and one of the most widespread behaviours is the sharing of pictures. However, malicious users often exploit shared pictures to create fake profiles…

Multimedia · Computer Science 2024-10-03 Flavio Bertini , Rajesh Sharma , Danilo Montesi

Online social networks have stimulated communications over the Internet more than ever, making it possible for secret message transmission over such noisy channels. In this paper, we propose a Coverless Image Steganography Network, called…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Zhengxin You , Qichao Ying , Sheng Li , Zhenxing Qian , Xinpeng Zhang

Research in HCI has shown a growing interest in unethical design practices across numerous domains, often referred to as ``dark patterns''. There is, however, a gap in related literature regarding social networking services (SNSs). In this…

Human-Computer Interaction · Computer Science 2023-03-02 Thomas Mildner , Gian-Luca Savino , Philip R. Doyle , Benjamin R. Cowan , Rainer Malaka