Search Results for author: Diego Gragnaniello

Found 10 papers, 3 papers with code

Towards Universal GAN Image Detection

no code implementations23 Dec 2021 Davide Cozzolino, Diego Gragnaniello, Giovanni Poggi, Luisa Verdoliva

The ever higher quality and wide diffusion of fake images have spawn a quest for reliable forensic tools.

Contrastive Learning

Are GAN generated images easy to detect? A critical analysis of the state-of-the-art

1 code implementation6 Apr 2021 Diego Gragnaniello, Davide Cozzolino, Francesco Marra, Giovanni Poggi, Luisa Verdoliva

The advent of deep learning has brought a significant improvement in the quality of generated media.

A Full-Image Full-Resolution End-to-End-Trainable CNN Framework for Image Forgery Detection

1 code implementation15 Sep 2019 Francesco Marra, Diego Gragnaniello, Luisa Verdoliva, Giovanni Poggi

Due to limited computational and memory resources, current deep learning models accept only rather small images in input, calling for preliminary image resizing.

Image Forensics Image Forgery Detection

Perceptual Quality-preserving Black-Box Attack against Deep Learning Image Classifiers

1 code implementation20 Feb 2019 Diego Gragnaniello, Francesco Marra, Giovanni Poggi, Luisa Verdoliva

Deep neural networks provide unprecedented performance in all image classification problems, taking advantage of huge amounts of data available for training.

Face Recognition General Classification +1

Do GANs leave artificial fingerprints?

no code implementations31 Dec 2018 Francesco Marra, Diego Gragnaniello, Luisa Verdoliva, Giovanni Poggi

In the last few years, generative adversarial networks (GAN) have shown tremendous potential for a number of applications in computer vision and related fields.

Analysis of adversarial attacks against CNN-based image forgery detectors

no code implementations25 Aug 2018 Diego Gragnaniello, Francesco Marra, Giovanni Poggi, Luisa Verdoliva

With the ubiquitous diffusion of social networks, images are becoming a dominant and powerful communication channel.

Image Forensics

A novel framework for image forgery localization

no code implementations27 Nov 2013 Davide Cozzolino, Diego Gragnaniello, Luisa Verdoliva

Image forgery localization is a very active and open research field for the difficulty to handle the large variety of manipulations a malicious user can perform by means of more and more sophisticated image editing tools.

BIG-bench Machine Learning Patch Matching

Image forgery detection based on the fusion of machine learning and block-matching methods

no code implementations27 Nov 2013 Davide Cozzolino, Diego Gragnaniello, Luisa Verdoliva

Dense local descriptors and machine learning have been used with success in several applications, like classification of textures, steganalysis, and forgery detection.

BIG-bench Machine Learning General Classification +2

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