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MNIST Image Generation based on Jittor CGAN

This is a jittor implementation of a conditional generative adversarial network (CGAN) for generating MNIST digits conditioned on their labels. A CGAN consists of two neural networks: a generator and a discriminator. The generator tries to create realistic images that match the given labels, while the discriminator tries to distinguish between real and fake images.

Requirements

  • jittor: a high-performance deep learning framework based on JIT compiling and meta-operators.
  • PIL: a Python imaging library for image processing.
  • numpy: a Python library for scientific computing.

You can install the required packages using the following command:

pip install -r requirements.txt

Usage

You can run the script using the following command:

python CGAN.py

You can also specify some optional arguments, such as:

  • --n_epochs: number of epochs of training (default: 50)
  • --batch_size: size of the batches (default: 64)
  • --lr: learning rate for Adam optimizer (default: 0.0002)
  • --b1: beta1 parameter for Adam optimizer (default: 0.5)
  • --b2: beta2 parameter for Adam optimizer (default: 0.999)
  • --n_cpu: number of cpu threads to use during batch generation (default: 8)
  • --latent_dim: dimensionality of the latent space (default: 100)
  • --n_classes: number of classes for dataset (default: 10)
  • --img_size: size of each image dimension (default: 32)
  • --channels: number of image channels (default: 1)
  • --sample_interval: interval between image sampling (default: 1000)
  • --train: whether to train the model or not (default: False)
  • --number: the number string to generate (default: “13620261360915”)

For example, you can train the model for 100 epochs with a batch size of 128 using the following command:

python CGAN.py --n_epochs 100 --batch_size 128 --train

Tests

You can test the model by generating some images conditioned on a given number sequence. The number sequence should be a string of digits from 0 to 9. For example, you can generate images conditioned on the number sequence “13620261360915” using the following command:

python CGAN.py --number "13620261360915"

The generated images will be saved as “result.png” in the same directory as the script.

References

This script is based on the following paper and code:

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