DCFace: Synthetic Face Generation with Dual Condition Diffusion Model

Official repository for the paper DCFace: Synthetic Face Generation with Dual Condition Diffusion Model (CVPR 2023).

• Arxiv: https://arxiv.org/abs/2304.07060
• Main paper: main.pdf
• Supplementary: supp.pdf

Pipepline

ID Consistent Generation

Installation

1. one-liner : install.sh

If above fails, then

pip install -r requirements.txt
# and download model weights from the link below

Image generation

Sample Code with given example images

We provide the sample code to generate images with the pretrained weights. The sample aligned images are provided in the repository.

• Download the pretrained weights from the link
• Place the pretrained_models directory under dcface (same level as src)
• Run

  cd dcface/src
  python synthesis.py --id_images_root sample_images/id_images/sample_57.png --style_images_root sample_images/style_images/woman

Optional

One can also generate new subject images and prepare custom style images.

1. Creating ID Images (New Subjects)

Unconditional ID image generation is done in dcface/stage1/unconditional_generation Take a look at the README.md in that directory for instructions on how to generate new ID images.

2. Creating Style Images

Any aligned images can serve as style images. We provive some sample images in sample_images/style_images directory. For anyone who wants to use their own style images, one should align the images first. Take a look at the README.md in dcface/stage1/style_bank directory for instructions on how to align images.

3. Using 1. and 2. to generate dataset

Assuming that you followed 1. and 2. you will have an id_image and style_images directory. For the sake of explaination, let's say

• ID image is <Project_root>/dcface/stage1/unconditional_generation/unconditional_samples_aligned/00011.png
• Style directory is <Project_root>/dcface/stage1/style_bank/style_images/raw_aligned Then to combine these run by pointing at these paths,

  cd dcface/src
  python synthesis.py \
      --id_images_root <Project_root>/dcface/stage1/unconditional_generation/unconditional_samples_aligned/00011.png \
      --style_images_root <Project_root>/dcface/stage1/style_bank/style_images/raw_aligned

  The result will be saved at <Project_root>/dcface/generated_images/

Training generator

Dataset preparation

• Download casia webface dataset from insightface
  • Place it under $DATA_ROOT (ex: /data/).
  • ex: /data/faces_webface_112x112

Download model weights

• Download all pretrained weights from the link
• Place the pretrained_models directory under dcface (same level as src)

Run

cd dcface/src/
bash train.sh

Dataset Release

DCFace synthetic dataset can be downloaded from link

• dcface_0.5m_oversample_xid.zip
• dcface_1.2m_oversample_xid.zip

The format of the downloaded file is in rec format.

• you can convert it to png using the script.
• rec file will be useful for the face recognition training script provided in the repository. (to be released soon)

cd dcface/convert
python record.py --rec_path <path_to_rec_file> --save_path <path_to_save_png>
# ex
# <path_to_rec_file> : dcface_0.5m_oversample_xid/record
# <path_to_save_png> : dcface_0.5m_oversample_xid/images

Training Face Recognition Model

• to be released soon