minor fix and support for `validate['save_img']` (#341)

* remove print

* add support for `validate['save_img']`

* `get_start.md` is linked to English doc

* remove spaces in empty line

README.md

@@ -31,7 +31,7 @@ GAN-Generative Adversarial Network, was praised by "the Father of Convolutional
 * More applications, please refer to [ppgan.apps apis](./docs/en_US/apis/apps.md)
 * More tutorials:
   - [Data preparation](./docs/en_US/data_prepare.md)
-  - [Training/Evaluating/Testing basic usage](./docs/zh_CN/get_started.md)
+  - [Training/Evaluating/Testing basic usage](./docs/en_US/get_started.md)
 
 ## Model Tutorial
 

ppgan/datasets/edvr_dataset.py

@@ -304,7 +304,6 @@ class REDSDataset(Dataset):
             else:
                 add_idx = i
             return_l.append(add_idx)
-        print(return_l)
         name_b = '{:08d}'.format(crt_i)
         return return_l, name_b
 

ppgan/engine/trainer.py

@@ -101,6 +101,8 @@ class Trainer:
         validate_cfg = cfg.get('validate', None)
         if validate_cfg and 'metrics' in validate_cfg:
             self.metrics = self.model.setup_metrics(validate_cfg['metrics'])
+        if validate_cfg and 'save_img' in validate_cfg:
+            self.is_save_img = validate_cfg['save_img']
 
         self.enable_visualdl = cfg.get('enable_visualdl', False)
         if self.enable_visualdl:
@@ -232,6 +234,7 @@ class Trainer:
             self.model.setup_input(data)
             self.model.test_iter(metrics=self.metrics)
 
+            if self.is_save_img:
                 visual_results = {}
                 current_paths = self.model.get_image_paths()
                 current_visuals = self.model.get_current_visuals()