Awesome

OpenMixup

📘Documentation | 🛠️Installation | 🚀Model Zoo | 👀Awesome Mixup | 🔍Awesome MIM | 🆕News

Introduction

The main branch works with PyTorch 1.8 (required by some self-supervised methods) or higher (we recommend PyTorch 1.12). You can still use PyTorch 1.6 for supervised classification methods.

OpenMixup is an open-source toolbox for supervised, self-, and semi-supervised visual representation learning with mixup based on PyTorch, especially for mixup-related methods. Recently, OpenMixup is on updating to adopt new features and code structures of OpenMMLab 2.0 (#42).

• Modular Design. OpenMixup follows a similar code architecture of OpenMMLab projects, which decompose the framework into various components, and users can easily build a customized model by combining different modules. OpenMixup is also transplantable to OpenMMLab projects (e.g., MMPreTrain).

• All in One. OpenMixup provides popular backbones, mixup methods, semi-supervised, and self-supervised algorithms. Users can perform image classification (CNN & Transformer) and self-supervised pre-training (contrastive and autoregressive) under the same framework.

• Standard Benchmarks. OpenMixup supports standard benchmarks of image classification, mixup classification, self-supervised evaluation, and provides smooth evaluation on downstream tasks with open-source projects (e.g., object detection and segmentation on Detectron2 and MMSegmentation).

• State-of-the-art Methods. Openmixup provides awesome lists of popular mixup and self-supervised methods. OpenMixup is updating to support more state-of-the-art image classification and self-supervised methods.

News and Updates

[2023-12-23] OpenMixup v0.2.9 is released, updating more features in mixup augmentations, self-supervised learning, and optimizers.

Installation

OpenMixup is compatible with Python 3.6/3.7/3.8/3.9 and PyTorch >= 1.6. Here are quick installation steps for development:

conda create -n openmixup python=3.8 pytorch=1.12 cudatoolkit=11.3 torchvision -c pytorch -y
conda activate openmixup
pip install openmim
mim install mmcv-full
git clone https://github.com/Westlake-AI/openmixup.git
cd openmixup
python setup.py develop

Please refer to install.md for more detailed installation and dataset preparation.

Getting Started

OpenMixup supports Linux and macOS. It enables easy implementation and extensions of mixup data augmentation methods in existing supervised, self-, and semi-supervised visual recognition models. Please see get_started.md for the basic usage of OpenMixup.

Training and Evaluation Scripts

Here, we provide scripts for starting a quick end-to-end training with multiple GPUs and the specified CONFIG_FILE.

bash tools/dist_train.sh ${CONFIG_FILE} ${GPUS} [optional arguments]

For example, you can run the script below to train a ResNet-50 classifier on ImageNet with 4 GPUs:

CUDA_VISIBLE_DEVICES=0,1,2,3 PORT=29500 bash tools/dist_train.sh configs/classification/imagenet/resnet/resnet50_4xb64_cos_ep100.py 4

After training, you can test the trained models with the corresponding evaluation script:

bash tools/dist_test.sh ${CONFIG_FILE} ${GPUS} ${PATH_TO_MODEL} [optional arguments]

Development

Please see Tutorials for more developing examples and tech details:

• config files
• add new dataset
• data pipeline
• add new modules
• customize schedules
• customize runtime

Downetream Tasks for Self-supervised Learning

• Classification
• Detection
• Segmentation

Useful Tools

• Analysis
• Visualization
• pytorch2onnx
• pytorch2torchscript

Overview of Model Zoo

Please run experiments or find results on each config page. Refer to Mixup Benchmarks for benchmarking results of mixup methods. View Model Zoos Sup and Model Zoos SSL for a comprehensive collection of mainstream backbones and self-supervised algorithms. We also provide the paper lists of Awesome Mixups and Awesome MIM for your reference. Please view config files and links to models at the following config pages. Checkpoints and training logs are on updating!

Change Log

Please refer to changelog.md for more details and release history.

License

This project is released under the Apache 2.0 license. See LICENSE for more information.

Acknowledgement

• OpenMixup is an open-source project for mixup methods and visual representation learning created by researchers in CAIRI AI Lab. We encourage researchers interested in backbone architectures, mixup augmentations, and self-supervised learning methods to contribute to OpenMixup!
• This project borrows the architecture design and part of the code from MMPreTrain and the official implementations of supported algorisms.

Citation

If you find this project useful in your research, please consider star OpenMixup or cite our tech report:

@article{li2022openmixup,
  title = {OpenMixup: A Comprehensive Mixup Benchmark for Visual Classification},
  author = {Siyuan Li and Zedong Wang and Zicheng Liu and Di Wu and Cheng Tan and Stan Z. Li},
  journal = {ArXiv},
  year = {2022},
  volume = {abs/2209.04851}
}

Contributors and Contact

For help, new features, or reporting bugs associated with OpenMixup, please open a GitHub issue and pull request with the tag "help wanted" or "enhancement". For now, the direct contributors include: Siyuan Li (@Lupin1998), Zedong Wang (@Jacky1128), and Zicheng Liu (@pone7). We thank all public contributors and contributors from MMPreTrain (MMSelfSup and MMClassification)!

This repo is currently maintained by:

• Siyuan Li (lisiyuan@westlake.edu.cn), Westlake University
• Zedong Wang (wangzedong@westlake.edu.cn), Westlake University
• Zicheng Liu (liuzicheng@westlake.edu.cn), Westlake University