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ALEN DOI

1. Overview

This repository contains the source code and supplementary materials for the paper titled ALEN: An Adaptive Dual-Approach for Enhancing Uniform and Non-Uniform Low-Light Images. This research focuses on low-light images enhancement.

ALEN_Architecture

  1. opencv-python == 4.9.0.80
  2. scikit-image == 0.22.0
  3. numpy == 1.24.3
  4. torch == 2.3.0+cu118
  5. Pillow == 10.2.0
  6. tqdm == 4.65.0
  7. natsort == 8.4.0
  8. torchvision == 0.18.0+cu118

2. Inference

To test the model, follow these steps:

  1. Download the code and pretrained weights from this link.

  2. Place your images to be enhanced in the ./1_Input directory.

  3. Run the code with the following command:

    python inference.py
    
  4. The enhanced images will be saved in the ./2_Output directory.

3. Datasets

This section describes the datasets used to train and evaluate the performance of ALEN: Adaptive Light Enhancement Network for low-light image enhancement.

3.1. Training Datasets

The following public datasets were used to train the ALEN model. These datasets contain images with global and local illumination variations, necessary for effective classification and enhancement:

Dataset Description Number of Images Type Resources
GLI Global-Local Illumination 2,000 Paired Classification Dataset
HDR+ High Dynamic Range Plus 922 Paired Enhancement Paper/Dataset
SLL Synthetic Low-Light 22,472 Paired Enhancement Paper/Dataset
MIT MIT-Adobe FiveK 5,000 Paired Enhancement Paper/Dataset

3.2. Evaluation Datasets

To evaluate the overall performance and generalization ability of ALEN, we used various datasets representing real-world scenarios:

Dataset Description Number of Images Type Resources
DIS Diverse Illumination Scene 10 Unpaired Enhancement Dataset
LSRW Large-Scale Real-World 735 Paired Enhancement Paper/Dataset
UHD-LOL4k Ultra-High Definition LOw-Light 4K 735 Paired Enhancement Paper/Dataset
DICM -------------------- 69 Unpaired Enhancement Paper/Dataset
LIME Low-light Image Enhancement 10 Unpaired Enhancement Paper/Dataset
MEF Multi-Exposure Fusion 17 Unpaired Enhancement Paper/Dataset
NPE Naturalness Preserved Enhancement 8 Unpaired Enhancement Paper/Dataset
TM-DIED The Most Difficult Image Enhancement Dataset 222 Unpaired Enhancement Dataset

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Low-Light Image Enhancement

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