CGS-Pytorch

This is an unofficial PyTorch implementation of Composing Good Shots by Exploiting Mutual Relations.

Results

GAICD

#Metric	SRCC↑	Acc5↑	Acc10↑
Paper	0.795	59.7	77.8
This code (best SRCC)	0.790	57.8	74.6
This code (best Acc)	0.779	59.5	77.3

I set the probability of mixing graph as 0.3 druing training, and scale the elements of adjacency matrix by the number of crops to produce more stable score prediction.

HCDB

#Metric	IoU↑	BDE↓
Paper	0.836	0.039
This code	0.811	0.044

Datasets Preparation

• GAICD [link]
• HCDB (FLMS) [Download Images] [Download Annotation]

Download&Unzip these datasets, palce them like this:

DATASET_FOLDER
  ├── GAICD
  │   └── images
  │   │    ├── image1.jpg
  │   │    └── image2.jpg
  │   └── annotations 
  │           ├── image1.txt
  │           └── image2.txt
  └── FLMS
      └── image
      │    ├── image1.jpg
      │    └── image2.jpg
      └── 500_image_dataset.mat 

Requirements

• PyTorch>=1.0

You can install packages using pip according to requirements.txt:

pip install -r requirements.txt

Usage

  # clone this repository
  git clone https://github.com/bo-zhang-cs/CGS-Pytorch.git
  cd CGS-Pytorch

Change the default dataset folder in config.py and you can check the paths by running cropping_dataset.py.

Install RoIAlign and RoDAlign

The source code of RoI&RoDAlign is from [here] compatible with PyTorch 1.0 or later. If you use Pytorch 0.4.1, please refer to [official implementation].

1. Change the CUDA_HOME and -arch=sm_86 in roi_align/make.sh and rod_align/make.sh according to your enviroment, respectively.
2. If you run this code in linux envoriment, make sure these bash files (make_all.sh, roi_align/make.sh, rod_align/make.sh) are Unix text file format by runing :set ff=unix in VIM.
3. cd CGS-Pytorch && sudo bash make_all.sh to build and install the packages.

Test

Download pretrained models (~75MB, ZIP format file) from [Google Drive] and unzip to the folder CGS-Pytorch/pretrained_model.

python test.py

This will produce a folder results where you can find the predicted best crops.

Train

python train.py

Track training process:

tensorboard --logdir=./experiments --bind_all

The model performance for each epoch is also recorded in .csv file under the produced folder ./experiments.

Citation

@inproceedings{li2020composing,
  title={Composing good shots by exploiting mutual relations},
  author={Li, Debang and Zhang, Junge and Huang, Kaiqi and Yang, Ming-Hsuan},
  booktitle={CVPR},
  year={2020}
}
@inproceedings{zeng2019reliable,
  title={Reliable and efficient image cropping: A grid anchor based approach},
  author={Zeng, Hui and Li, Lida and Cao, Zisheng and Zhang, Lei},
  booktitle={CVPR},
  year={2019}
}

More references about image cropping

Awesome Image Aesthetic Assessment and Cropping

Acknowledgments

Thanks to [GAIC] and [GAIC-Pytorch1.0+].