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Face Sketch to Image Generation using GAN

This repository contains the code for implementing an image generation system using GAN (Generative Adversarial Networks) to turn face sketches into realistic photos.

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Contents

Install requirements

pip install -r requirements.txt
Keras-contrib installation

Or you can refer to this link https://medium.com/@kegui/how-to-install-keras-contrib-7b75334ab742

Data Augmentation

  • The dataset consists 100 pairs faces and sketches. 88 pairs were chosen for training set.
  • Each pair is augmented to 200 pairs of face and sketch using transformation, rotation and shearing.
  • Do Data Augmentation with this notebook

GAN

  • The GAN model architecture involves two sub-models: a generator model for generating new examples and a discriminator model for classifying whether generated examples are real, from the domain, or fake, generated by the generator model.

  • GAN model consists of Generator model with 50 layers and Adversary Model with 9 layers.

Training

  • Start training GAN model with this notebook
  • GAN model trained for 82 epochs
  • Generator model Loss = 2.052
  • Discriminator model Loss = 1.139

Model Prediction after

  • 1 epoch :

  • 10 epoch :

  • 25 epoch :

  • 50 epoch :

  • 82 epoch :

Performance Measurement

  • SSIM (Structural Similarity Index) is used for measuring the similarity between two images.
  • SSIM = 0.7858
  • L2 Norm = 93.452
  • Calculate SSIM and Verification Accuracy (L2-norm) using this notebook

Testing

Generate single image with this notebook

References

[1] X. Wang and X. Tang. (2009). Face Photo-Sketch Synthesis and Recognition. IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI), 31(11), 1955-1967.

[2] W. Zhang, X. Wang and X. Tang. (2011). Coupled Information-Theoretic Encoding for Face Photo-Sketch Recognition. Proceedings of IEEE Conference on Computer Vision and Pattern Recognition (CVPR).

[3] https://github.com/Malikanhar/Face-Sketch-to-Image-Generation-using-GAN