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EDN

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[IEEE TIP 2022] Code of EDN: Salient Object Detection via Extremely-Downsampled Network

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# EDN

[IEEE TIP 2022, EDN: Salient Object Detection via Extremely-Downsampled Network](https://arxiv.org/abs/2012.13093)

中文版下载地址：[中文版](https://mmcheng.net/wp-content/uploads/2022/06/21TIP_EDN_CN.pdf)

If you run into any problems or feel any difficulties to run this code, do not hesitate to leave issues in this repository.

My e-mail is: wuyuhuan @ mail.nankai (dot) edu.cn

:fire: News! We updated the code with [P2T](https://arxiv.org/abs/2106.12011) transformer bacbone. It achieves much higher result than the original EDN with ResNet-50! you can download the [saliency maps](https://github.com/yuhuan-wu/EDN/releases/download/v1.0/EDN-P2T-S.zip) and [pretrained model](https://github.com/yuhuan-wu/EDN/releases/download/v1.0/EDN-P2T-S.pth) from github release of this repository.

This repository contains:

- [x] Full code, data for `training` and `testing`
- [x] Pretrained models based on VGG16, ResNet-50, [P2T-Small](https://arxiv.org/abs/2106.12011) and MobileNetV2
- [x] Fast preparation script (based on github release)

### Requirements

* python 3.6+
* pytorch >=1.6, torchvision, OpenCV-Python, tqdm
* Tested on pyTorch 1.7.1

Simply using:
````
pip install -r requirements.txt
````
to install all requirements.

### Run all steps quickly

Simply run:

```
bash one-key-run.sh
```

It will download all data, evaluate all models, produce all saliency maps to `salmaps/` folder,  and train `EDN-Lite` automatically. 
**Note that this script requires that you have a good downloading speed on GitHub.**

### Data Preparing

**You can choose to use our automatic preparation script, if you have good downloading speed on github**:
```
bash scripts/prepare_data.sh
```
The script will prepare the datasets, imagenet-pretrained models, and pretrained models of EDN/EDN-Lite. 
If you suffer from slow downloading rate and luckily you have a proxy, a powerful tool [Proxychains4](https://github.com/rofl0r/proxychains-ng) can help you to execute the script through your own proxy by running the following command: `proxychains4 bash scripts/prepare_data.sh`.

If you have a low downloading speed, please download the training data manually:

* Preprocessed data of 6 datasets: [[Google Drive]](https://drive.google.com/file/d/1fj1KoLa8uOBmGMkpKkjj7xVHciSd8_4V/view?usp=sharing), [[Baidu Pan, ew9i]](https://pan.baidu.com/s/1tNGQS9SjFu9hm0a0svnlvg?pwd=ew9i)

We have processed the data well so you can use them without any preprocessing steps. 
After completion of downloading, extract the data and put them to `./data/` folder:

```
unzip SOD_datasets.zip -O ./data
```

### Demo

We provide some examples for quick run:
````
python demo.py
````

### Train

If you cannot run `bash scripts/prepare_data.sh`, please first download the imagenet pretrained models and put them to `pretrained` folder:

* [[Google Drive]](https://drive.google.com/drive/folders/1ios0nOHQt61vsmu-pdkpS1zBb_CwLrmk?usp=sharing), [[Baidu Pan,eae8]](https://pan.baidu.com/s/1xJNJ8SEDwKMHxlFh3yCUeQ?pwd=eae8)

It is very simple to train our network. We have prepared a script to train EDN-Lite:
```
bash ./scripts/train.sh
```

To train EDN-VGG16 or EDN-R50, you need to change the params in `scripts/train.sh`. Please refer to the comments in the last part of `scripts/train.sh` for more details (very simple).

### Test

#### Pretrained Models

Download them from the following urls if you did not run `bash scripts/prepare_data.sh` to prepare the data:

* [[Google Drive]](https://drive.google.com/drive/folders/1Un6trEOTIVza2wH5Q2PAQVNGgsKEEHv4?usp=sharing), [[Baidu Pan,eae8]](https://pan.baidu.com/s/1xJNJ8SEDwKMHxlFh3yCUeQ?pwd=eae8)

#### Generate Saliency Maps

After preparing the pretrained models, it is also very simple to generate saliency maps via EDN-VGG16/EDN-R50/EDN-Lite/EDN-LiteEX:

```
bash ./tools/test.sh
```

The scripts will automatically generate saliency maps on the `salmaps/` directory.

* For computing Fbw, S-m, and E-m measures, please use the official MATLAB code to generate the results: [Download Code Here](https://github.com/yuhuan-wu/EDN/files/13497335/fbw-sm-em.zip).

#### Pre-computed Saliency maps

For covenience, we provide the pretrained saliency maps on several datasets by:

* Running the command `bash scripts/prepare_salmaps.sh` to download them to `salmaps` folder.
* Or downloading them manually: [[Google Drive]](https://drive.google.com/drive/folders/1MymUy-aZx_45YJSOPd3GQjwel-YBTUPX?usp=sharing), [[Baidu Pan, c9zm]](https://pan.baidu.com/s/1HAZTrJhIkw8JdACN_ChGWA?pwd=c9zm)
* Now we have included all saliency maps of EDN varies, including EDN-VGG16, EDN-ResNet-50, **EDN-P2T-Small**, EDN-Lite, and EDN-LiteEX.

### Others

#### TODO

#### Contact

* I encourage everyone to contact me via my e-mail. My e-mail is: wuyuhuan @ mail.nankai (dot) edu.cn

#### License

The code is released under the [Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License](https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) for NonCommercial use only.

#### Citation

If you are using the code/model/data provided here in a publication, please consider citing our works:

````
@ARTICLE{wu2022edn,
  title={EDN: Salient object detection via extremely-downsampled network},
  author={Wu, Yu-Huan and Liu, Yun and Zhang, Le and Cheng, Ming-Ming and Ren, Bo},
  journal={IEEE Transactions on Image Processing},
  year={2022}
}

@ARTICLE{wu2021mobilesal,
  author={Wu, Yu-Huan and Liu, Yun and Xu, Jun and Bian, Jia-Wang and Gu, Yu-Chao and Cheng, Ming-Ming},
  journal={IEEE Transactions on Pattern Analysis and Machine Intelligence}, 
  title={MobileSal: Extremely Efficient RGB-D Salient Object Detection}, 
  year={2021},
  doi={10.1109/TPAMI.2021.3134684}
}
````

EDN

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