MAGIC: Mask-Guided Image Synthesis by Inverting a Quasi-Robust Classifier

Official Pytorch implementation of the following paper:

• Rouhsedaghat M, Monajatipoor M, Kuo CC, Masi I. MAGIC: Mask-Guided Image Synthesis by Inverting a Quasi-Robust Classifier In Proceedings of AAAI Conference on Artificial Intelligence AAAI-23.

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MAGIC allows a diverse set of image synthesis tasks following the semantic of objects and scenes requiring a single image, its binary segmentation source mask, and a target mask. In each pair, the left image is the input, and the right one is the manipulated image, guided by the mask shown on top. a) position control and copy/move manipulation; b) shape control on object (non repetitive); c) shape control on scene (repetitive) images.

For each input, we fix the mask and start the synthesis from three different starting points while observing the boundaries specified by the target mask and generating realistic images, MAGIC keeps specificity and generates diverse results.

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Requirements

The code is tested in a virtual environment with Python 3.6 and pytorch 1.3.1 on NVIDIA NVIDIA Quadro M600 GPU. The version of all other required libraries is available in requirements.txt.

Before running the code

Download an adversarially robust classifier from here and store it in the magic folder. For MAGIC results we have used an L2-robust ResNet-50 with ε=0.05.

Running the code

First, store the training image in input_images as x.jpg and its corresponding training binary mask as gt_x.jpg in labels. Then, place the target mask(s) as target#num_x.jpg in labels. #num can be any number, e.g., target1_x.jpg, target2_x.jpg, etc.

Finally run the below code:

python train.py --gpu 5 \
                --save_prefix results_ \
                --mode synthesis \
                --target_prefix #num \
                --setting_id 2  \ 
                --pre_w resnet50-l2-eps0.05.ckpt \
                --file_name x

Reference and Citation

If you find our method useful, please cite our paper by using the following bibtex item:

@inproceedings{rouhsedaghat2023magic,
  title={  {M}{A}{G}{I}{C}: {M}ask-{G}uided {I}mage {S}ynthesis by {I}nverting a {Q}uasi-{R}obust {C}lassifier},
  author={Rouhsedaghat, Mozhdeh and Monajatipoor, Masoud and Kuo, C-C Jay and Masi, Iacopo},
  booktitle={In Proceedings of AAAI Conference on Artificial Intelligence},
  year={2023}
}

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This repository is in its initial stage, please report bugs to rouhseda@usc.edu

Thanks~