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Related papers: Image Hash Minimization for Tamper Detection

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We address the problem of data-driven image manipulation detection in the presence of an attacker with limited knowledge about the detector. Specifically, we assume that the attacker knows the architecture of the detector, the training data…

Cryptography and Security · Computer Science 2019-02-19 Zhipeng Chen , Benedetta Tondi , Xiaolong Li , Rongrong Ni , Yao Zhao , Mauro Barni

Minwise hashing is a fundamental and one of the most successful hashing algorithm in the literature. Recent advances based on the idea of densification~\cite{Proc:OneHashLSH_ICML14,Proc:Shrivastava_UAI14} have shown that it is possible to…

Data Structures and Algorithms · Computer Science 2017-03-16 Anshumali Shrivastava

Image hashing is the process of associating a short vector of bits to an image. The resulting summaries are useful in many applications including image indexing, image authentication and pattern recognition. These hashes need to be…

Computer Vision and Pattern Recognition · Computer Science 2010-09-17 Maxime Taquet , Laurent Jacques , Christophe De Vleeschouwer , Benoit Macq

Automatic crack detection is a critical task that has the potential to drastically reduce labor-intensive building and road inspections currently being done manually. Recent studies in this field have significantly improved the detection…

Computer Vision and Pattern Recognition · Computer Science 2020-11-05 Yuki Inoue , Hiroto Nagayoshi

This paper presents a fast algorithm for obtaining high-accuracy subpixel translation of low PSNR images. Instead of locating the maximum point on the upsampled images or fitting the peak of correlation surface, the proposed algorithm is…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Song Feng , Linhua Deng , Guofeng Shu , Feng Wang , Hui Deng , Kaifan Ji

Nowadays, digital content is widespread and simply redistributable, either lawfully or unlawfully. For example, after images are posted on the internet, other web users can modify them and then repost their versions, thereby generating…

Computer Vision and Pattern Recognition · Computer Science 2020-09-08 K. K. Thyagharajan , G. Kalaiarasi

We propose theoretical and empirical improvements for two-stage hashing methods. We first provide a theoretical analysis on the quality of the binary codes and show that, under mild assumptions, a residual learning scheme can construct…

Machine Learning · Computer Science 2018-08-07 Fatih Cakir , Kun He , Stan Sclaroff

Image enhancement is an important image processing technique that processes images suitably for a specific application e.g. image editing. The conventional solutions of image enhancement are grouped into two categories which are spatial…

Computer Vision and Pattern Recognition · Computer Science 2016-09-14 Hui Li , Xiaomeng Wang , Weifeng Liu , Yanjiang Wang

We propose 'Hide-and-Seek' a general purpose data augmentation technique, which is complementary to existing data augmentation techniques and is beneficial for various visual recognition tasks. The key idea is to hide patches in a training…

Computer Vision and Pattern Recognition · Computer Science 2018-11-07 Krishna Kumar Singh , Hao Yu , Aron Sarmasi , Gautam Pradeep , Yong Jae Lee

In recent years, a lot of attention has been devoted to efficient nearest neighbor search by means of similarity-preserving hashing. One of the plights of existing hashing techniques is the intrinsic trade-off between performance and…

Computer Vision and Pattern Recognition · Computer Science 2014-02-18 Jonathan Masci , Alex M. Bronstein , Michael M. Bronstein , Pablo Sprechmann , Guillermo Sapiro

In this paper the background detection in images in poor lighting can be done by the use of morphological filters. Lately contrast image enhancement technique is used to detect the background in image which uses Weber's Law. The proposed…

Multimedia · Computer Science 2010-09-09 A. Saradha Devi , S. Suja Priyadharsini , S. Athinarayanan

In this paper we propose a method of corner detection for obtaining features which is required to track and recognize objects within a noisy image. Corner detection of noisy images is a challenging task in image processing. Natural images…

Computer Vision and Pattern Recognition · Computer Science 2012-09-14 Nilanjan Dey , Pradipti Nandi , Nilanjana Barman

Recently, hashing techniques have gained importance in large-scale retrieval tasks because of their retrieval speed. Most of the existing cross-view frameworks assume that data are well paired. However, the fully-paired multiview situation…

Computer Vision and Pattern Recognition · Computer Science 2018-06-20 Jun Yu , Xiao-Jun Wu , Josef Kittler

Motivated by the fact that 2-dimensional data have become popularly used in many applications without being much considered its integrity checking. We introduce the problem of detecting a corrupted area in a 2-dimensional space, and…

Data Structures and Algorithms · Computer Science 2014-04-08 YounSun Cho

Image scaling is an integral part of machine learning and computer vision systems. Unfortunately, this preprocessing step is vulnerable to so-called image-scaling attacks where an attacker makes unnoticeable changes to an image so that it…

Cryptography and Security · Computer Science 2024-02-05 Erwin Quiring , Andreas Müller , Konrad Rieck

The ever higher quality and wide diffusion of fake images have spawn a quest for reliable forensic tools. Many GAN image detectors have been proposed, recently. In real world scenarios, however, most of them show limited robustness and…

Computer Vision and Pattern Recognition · Computer Science 2021-12-24 Davide Cozzolino , Diego Gragnaniello , Giovanni Poggi , Luisa Verdoliva

A novel representation of images for image retrieval is introduced in this paper, by using a new type of feature with remarkable discriminative power. Despite the multi-scale nature of objects, most existing models perform feature…

Computer Vision and Pattern Recognition · Computer Science 2014-06-06 Shasha Bu , Yu-Jin Zhang

In hash-based image retrieval systems, degraded or transformed inputs usually generate different codes from the original, deteriorating the retrieval accuracy. To mitigate this issue, data augmentation can be applied during training.…

Computer Vision and Pattern Recognition · Computer Science 2022-07-14 Young Kyun Jang , Geonmo Gu , Byungsoo Ko , Isaac Kang , Nam Ik Cho

Supervised hashing methods are widely-used for nearest neighbor search in computer vision applications. Most state-of-the-art supervised hashing approaches employ batch-learners. Unfortunately, batch-learning strategies can be inefficient…

Computer Vision and Pattern Recognition · Computer Science 2015-11-11 Fatih Cakir , Sarah Adel Bargal , Stan Sclaroff

In this paper, we introduce a bilinear composition loss function to address the problem of image dehazing. Previous methods in image dehazing use a two-stage approach which first estimate the transmission map followed by clear image…

Computer Vision and Pattern Recognition · Computer Science 2017-10-03 Hui Yang , Jinshan Pan , Qiong Yan , Wenxiu Sun , Jimmy Ren , Yu-Wing Tai