SOL4Py Samples

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# 2019/07/23

#  TorchVegeFruitsDenosingAutoEncoder.py

# encodig: utf-8

import sys
import os
import time
import traceback
import random
import matplotlib.pyplot as plt
import numpy as np
from PIL import Image, ImageOps, ImageFilter

import torch.nn as nn
import torch.nn.functional as F
import torch.optim as optim

import torchvision.transforms as transforms
from torch.utils.data import DataLoader

sys.path.append('../../')


from SOL4Py.ZMLModel import *
from SOL4Py.ZMain    import *
from SOL4Py.ZGaussianNoiseInjector import ZGaussianNoiseInjector
from SOL4Py.ZPILGaussianNoise import ZPILGaussianNoise


from SOL4Py.torch.ZTorchSimpleAutoEncoderModel import ZTorchSimpleAutoEncoderModel
from SOL4Py.torch.ZTorchEpochChangeNotifier import ZTorchEpochChangeNotifier
from SOL4Py.torch.ZTorchModelCheckPoint import ZTorchModelCheckPoint

sys.path.append('../')

from TorchVegeFruitsDataset import TorchVegeFruitsDataset
from VegeFruitsAutoEncoder.TorchVegeFruitsAutoEncoder import TorchVegeFruitsAutoEncoder

# Define TorchVegeFruitsDenosingAutoEncoder derived from TorchVegeFruitsAutoEncoder,
# because there are quite similar interfaces between them.


class TorchVegeFruitsDenoisingAutoEncoder(TorchVegeFruitsAutoEncoder):

  ##
  # Constructor
  def __init__(self, dataset_id, 
                     epochs=20, mainv=None, ipaddress="127.0.0.1", port=8888):

    super(TorchVegeFruitsDenoisingAutoEncoder, self).__init__(dataset_id, epochs, mainv, ipaddress, port)

    self.model_filename  = self.__class__.__name__ + "_" + str(self.dataset_id) + ".pt"


  # Create training and validation transformers with ZPILGaussianNoise.
  def create_image_transformer(self):
 
    # Set training and validation transformers which include GaussianNoise preprocessings.
    self.train_transformer = transforms.Compose([
                        ZPILGaussianNoise(40),
                        transforms.ToTensor(),])
     
    self.valid_transformer = transforms.Compose([
                        ZPILGaussianNoise(40),
                        transforms.ToTensor(),])


#################################################
#
if main(__name__):

  try:
    app_name  = os.path.basename(sys.argv[0])
   
    dataset_id = 0
    epochs     = 20

    if len(sys.argv) >=2:
      dataset_id = int(sys.argv[1])
    
    if len(sys.argv) ==3:
      epochs = int(sys.argv[2])

    model = TorchVegeFruitsDenoisingAutoEncoder(dataset_id = dataset_id, 
                                  epochs = epochs)
    model.build()
    
    sample = 10
    
    decoded_images = model.predict(model.valid_loader,     n_sampling=sample)
    model.show_images(model.valid_loader, decoded_images,  n_sampling=sample)

  except:
    traceback.print_exc()