Search Results for author: Wu-chi Feng

Found 2 papers, 0 papers with code

Context-Aware Image Denoising with Auto-Threshold Canny Edge Detection to Suppress Adversarial Perturbation

no code implementations14 Jan 2021 Li-Yun Wang, Yeganeh Jalalpour, Wu-chi Feng

This paper presents a novel context-aware image denoising algorithm that combines an adaptive image smoothing technique and color reduction techniques to remove perturbation from adversarial images.

Edge Detection Image Denoising +1

Content-Adaptive Pixel Discretization to Improve Model Robustness

no code implementations3 Dec 2020 Ryan Feng, Wu-chi Feng, Atul Prakash

We first formally prove that adaptive codebooks can provide stronger robustness guarantees than fixed codebooks as a preprocessing defense on some datasets.

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