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Colorization has attracted increasing interest in recent years. Classic reference-based methods usually rely on external color images for plausible results. A large image database or online search engine is inevitably required for…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Yanze Wu , Xintao Wang , Yu Li , Honglun Zhang , Xun Zhao , Ying Shan

Most researchers have tried to enhance the robustness of DNNs by revealing and repairing the vulnerability of DNNs with specialized adversarial examples. Parts of the attack examples have imperceptible perturbations restricted by Lp norm.…

计算机视觉与模式识别 · 计算机科学 2024-05-29 Yihao Huang , Liangru Sun , Qing Guo , Felix Juefei-Xu , Jiayi Zhu , Jincao Feng , Yang Liu , Geguang Pu

As Generative AI continues to become more accessible, the case for robust detection of generated images in order to combat misinformation is stronger than ever. Invisible watermarking methods act as identifiers of generated content,…

计算机视觉与模式识别 · 计算机科学 2024-12-18 Dongjun Hwang , Sungwon Woo , Tom Gao , Raymond Luo , Sunghwan Baek

Human beings can imagine the colours of a grayscale image with no particular effort thanks to their ability of semantic feature extraction. Can an autonomous system achieve that? Can it hallucinate plausible and vibrant colours? This is the…

计算机视觉与模式识别 · 计算机科学 2020-12-07 Rita Pucci , Christian Micheloni , Gian Luca Foresti , Niki Martinel

We present the first undetectable watermarking scheme for generative image models. Undetectability ensures that no efficient adversary can distinguish between watermarked and un-watermarked images, even after making many adaptive queries.…

密码学与安全 · 计算机科学 2025-04-23 Sam Gunn , Xuandong Zhao , Dawn Song

Several years of research have shown that machine-learning systems are vulnerable to adversarial examples, both in theory and in practice. Until now, such attacks have primarily targeted visual models, exploiting the gap between human and…

计算与语言 · 计算机科学 2021-12-14 Nicholas Boucher , Ilia Shumailov , Ross Anderson , Nicolas Papernot

Decolorization is the process to convert a color image or video to its grayscale version, and it has received great attention in recent years. An ideal decolorization algorithm should preserve the original color contrast as much as…

图形学 · 计算机科学 2014-04-23 Wei Hu , Wei Li , Fan Zhang , Qian Du

Physical adversarial examples for camera-based computer vision have so far been achieved through visible artifacts -- a sticker on a Stop sign, colorful borders around eyeglasses or a 3D printed object with a colorful texture. An implicit…

计算机视觉与模式识别 · 计算机科学 2021-04-20 Athena Sayles , Ashish Hooda , Mohit Gupta , Rahul Chatterjee , Earlence Fernandes

Colorization of grayscale images has been a hot topic in computer vision. Previous research mainly focuses on producing a colored image to match the original one. However, since many colors share the same gray value, an input grayscale…

计算机视觉与模式识别 · 计算机科学 2017-07-04 Yun Cao , Zhiming Zhou , Weinan Zhang , Yong Yu

Exemplar-based image colorization aims to colorize a target grayscale image based on a color reference image, and the key is to establish accurate pixel-level semantic correspondence between these two images. Previous methods search for…

计算机视觉与模式识别 · 计算机科学 2023-11-30 Siqi Chen , Xueming Li , Xianlin Zhang , Mingdao Wang , Yu Zhang , Yue Zhang

Web accessibility guidelines require sufficient color contrast between text and backgrounds; yet, manually adjusting colors often necessitates significant visual deviation, compromising vital brand aesthetics. We present a novel,…

人机交互 · 计算机科学 2025-12-05 Lalitha A R

Colorizing grayscale images offers an engaging visual experience. Existing automatic colorization methods often fail to generate satisfactory results due to incorrect semantic colors and unsaturated colors. In this work, we propose an…

计算机视觉与模式识别 · 计算机科学 2024-04-26 Han Wang , Xinning Chai , Yiwen Wang , Yuhong Zhang , Rong Xie , Li Song

High-fidelity text-to-image diffusion models have revolutionized visual content generation, but their widespread use raises significant ethical concerns, including intellectual property protection and the misuse of synthetic media. To…

计算机视觉与模式识别 · 计算机科学 2025-08-21 Yunzhuo Chen , Naveed Akhtar , Nur Al Hasan Haldar , Ajmal Mian

Generative AI models, renowned for their ability to synthesize high-quality content, have sparked growing concerns over the improper generation of copyright-protected material. While recent studies have proposed various approaches to…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Qipan Xu , Zhenting Wang , Xiaoxiao He , Ligong Han , Ruixiang Tang

Personalized concept generation by tuning diffusion models with a few images raises potential legal and ethical concerns regarding privacy and intellectual property rights. Researchers attempt to prevent malicious personalization using…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Xiaoyue Mi , Fan Tang , You Wu , Juan Cao , Peng Li , Yang Liu

Deep neural networks are highly vulnerable to adversarial examples, which imposes severe security issues for these state-of-the-art models. Many defense methods have been proposed to mitigate this problem. However, a lot of them depend on…

计算机视觉与模式识别 · 计算机科学 2019-10-02 Nader Asadi , AmirMohammad Sarfi , Mehrdad Hosseinzadeh , Sahba Tahsini , Mahdi Eftekhari

Deep neural networks have been proved that they are vulnerable to adversarial examples, which are generated by adding human-imperceptible perturbations to images. To defend these adversarial examples, various detection based methods have…

计算机视觉与模式识别 · 计算机科学 2021-02-24 Kejiang Chen , Yuefeng Chen , Hang Zhou , Chuan Qin , Xiaofeng Mao , Weiming Zhang , Nenghai Yu

We propose a novel method for creating adversarial examples. Instead of perturbing pixels, we use an encoder-decoder representation of the input image and perturb intermediate layers in the decoder. This changes the high-level features…

计算机视觉与模式识别 · 计算机科学 2021-10-15 Vojtěch Čermák , Lukáš Adam

It has been shown that most machine learning algorithms are susceptible to adversarial perturbations. Slightly perturbing an image in a carefully chosen direction in the image space may cause a trained neural network model to misclassify…

计算机视觉与模式识别 · 计算机科学 2017-07-13 Jiajun Lu , Hussein Sibai , Evan Fabry , David Forsyth

Diffusion Models (DMs) have shown remarkable capabilities in various image-generation tasks. However, there are growing concerns that DMs could be used to imitate unauthorized creations and thus raise copyright issues. To address this…

计算机视觉与模式识别 · 计算机科学 2024-04-22 Peifei Zhu , Tsubasa Takahashi , Hirokatsu Kataoka