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diff --git a/options/train_options.py b/options/train_options.py
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+### Copyright (C) 2017 NVIDIA Corporation. All rights reserved. 
+### Licensed under the CC BY-NC-SA 4.0 license (https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode).
+from .base_options import BaseOptions
+
+class TrainOptions(BaseOptions):
+    def initialize(self):
+        BaseOptions.initialize(self)
+        # for displays
+        self.parser.add_argument('--display_freq', type=int, default=100, help='frequency of showing training results on screen')
+        self.parser.add_argument('--print_freq', type=int, default=100, help='frequency of showing training results on console')
+        self.parser.add_argument('--save_latest_freq', type=int, default=1000, help='frequency of saving the latest results')
+        self.parser.add_argument('--save_epoch_freq', type=int, default=10, help='frequency of saving checkpoints at the end of epochs')        
+        self.parser.add_argument('--no_html', action='store_true', help='do not save intermediate training results to [opt.checkpoints_dir]/[opt.name]/web/')
+        self.parser.add_argument('--debug', action='store_true', help='only do one epoch and displays at each iteration')
+
+        # for training
+        self.parser.add_argument('--continue_train', action='store_true', help='continue training: load the latest model')
+        self.parser.add_argument('--load_pretrain', type=str, default='', help='load the pretrained model from the specified location')
+        self.parser.add_argument('--which_epoch', type=str, default='latest', help='which epoch to load? set to latest to use latest cached model')
+        self.parser.add_argument('--phase', type=str, default='train', help='train, val, test, etc')
+        self.parser.add_argument('--niter', type=int, default=100, help='# of iter at starting learning rate')
+        self.parser.add_argument('--niter_decay', type=int, default=100, help='# of iter to linearly decay learning rate to zero')
+        self.parser.add_argument('--beta1', type=float, default=0.5, help='momentum term of adam')
+        self.parser.add_argument('--lr', type=float, default=0.0002, help='initial learning rate for adam')
+
+        # for discriminators        
+        self.parser.add_argument('--num_D', type=int, default=2, help='number of discriminators to use')
+        self.parser.add_argument('--n_layers_D', type=int, default=3, help='only used if which_model_netD==n_layers')
+        self.parser.add_argument('--ndf', type=int, default=64, help='# of discrim filters in first conv layer')    
+        self.parser.add_argument('--lambda_feat', type=float, default=10.0, help='weight for feature matching loss')                
+        self.parser.add_argument('--no_ganFeat_loss', action='store_true', help='if specified, do *not* use discriminator feature matching loss')
+        self.parser.add_argument('--no_vgg_loss', action='store_true', help='if specified, do *not* use VGG feature matching loss')        
+        self.parser.add_argument('--no_lsgan', action='store_true', help='do *not* use least square GAN, if false, use vanilla GAN')
+        self.parser.add_argument('--pool_size', type=int, default=0, help='the size of image buffer that stores previously generated images')
+
+        self.isTrain = True