Papers › Fast Context-Based Low-Light Image Enhancement via Neural Implicit Representations

Fast Context-Based Low-Light Image Enhancement via Neural Implicit Representations

17 Jul 2024arXiv:2407.12511archive 2025-07-28

Tomáš Chobola, Yu Liu, Hanyi Zhang, Julia A. Schnabel, Tingying Peng

Current deep learning-based low-light image enhancement methods often struggle with high-resolution images, and fail to meet the practical demands of visual perception across diverse and unseen scenarios. In this paper, we introduce a novel approach termed CoLIE, which redefines the enhancement process through mapping the 2D coordinates of an underexposed image to its illumination component, conditioned on local context. We propose a reconstruction of enhanced-light images within the HSV space utilizing an implicit neural function combined with an embedded guided filter, thereby significantly reducing computational overhead. Moreover, we introduce a single image-based training loss function to enhance the model's adaptability to various scenes, further enhancing its practical applicability. Through rigorous evaluations, we analyze the properties of our proposed framework, demonstrating its superiority in both image quality and scene adaptability. Furthermore, our evaluation extends to applications in downstream tasks within low-light scenarios, underscoring the practical utility of CoLIE. The source code is available at https://github.com/ctom2/colie.

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diff_x ctom2/colie/filter.py official repository ran · our draft was wrong fingerprinted Apache-2.0 (permissive) · e365505adb10850a · report
diff_y ctom2/colie/filter.py official repository ran · our draft was wrong fingerprinted Apache-2.0 (permissive) · e083b81277e9fa37 · report
get_image ctom2/colie/utils.py official repository ran Apache-2.0 (permissive) · ff11c5f2ecf6311f · report
get_v_component ctom2/colie/utils.py official repository ran fingerprinted Apache-2.0 (permissive) · 3ed573b9160f089c · report
hsv2rgb_torch ctom2/colie/color.py official repository ran fingerprinted Apache-2.0 (permissive) · 558377468b7fe78d · report
replace_v_component ctom2/colie/utils.py official repository ran Apache-2.0 (permissive) · febbf20428c76c40 · report
rgb2hsv_torch ctom2/colie/color.py official repository ran fingerprinted Apache-2.0 (permissive) · 46e10bbc697edcd1 · report

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Image EnhancementLow-Light Image Enhancement

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