Fix mp error on Windows

src/core/factories.py

@@ -175,7 +175,7 @@ def _get_basic_configs(ds_name, C):
         return dict(
             root = constants.IMDB_AIRCHANGE
         )
-    elif ds_name.startswith('Lebedev'):
+    elif ds_name == 'Lebedev':
         return dict(
             root = constants.IMDB_LEBEDEV
         )

src/data/_AirChange.py

 import abc
 from os.path import join, basename
-from multiprocessing import Manager
+from functools import lru_cache
 
 import numpy as np
 
@@ -19,11 +19,6 @@ class _AirChangeDataset(CDDataset):
         super().__init__(root, phase, transforms, repeats)
         self.cropper = Crop(bounds=(0, 0, 748, 448))
 
-        self._manager = Manager()
-        sync_list = self._manager.list
-        self.images = sync_list([sync_list([None]*self.N_PAIRS), sync_list([None]*self.N_PAIRS)])
-        self.labels = sync_list([None]*self.N_PAIRS)
-
     @property
     @abc.abstractmethod
     def LOCATION(self):
@@ -41,32 +36,28 @@ class _AirChangeDataset(CDDataset):
 
     def _read_file_paths(self):
         if self.phase == 'train':
-            sample_ids = range(self.N_PAIRS)
-            t1_list = ['-'.join([self.LOCATION,str(i),'0.bmp']) for i in sample_ids if i not in self.TEST_SAMPLE_IDS]
-            t2_list = ['-'.join([self.LOCATION,str(i),'1.bmp']) for i in sample_ids if i not in self.TEST_SAMPLE_IDS]
-            label_list = ['-'.join([self.LOCATION,str(i),'cm.bmp']) for i in sample_ids if i not in self.TEST_SAMPLE_IDS]
+            sample_ids = [i for i in range(self.N_PAIRS) if i not in self.TEST_SAMPLE_IDS]
+            t1_list = [join(self.root, self.LOCATION, str(i+1), 'im1') for i in sample_ids]
+            t2_list = [join(self.root, self.LOCATION, str(i+1), 'im2') for i in sample_ids]
+            label_list = [join(self.root, self.LOCATION, str(i+1), 'gt') for i in sample_ids]
         else:
-            t1_list = ['-'.join([self.LOCATION,str(i),'0.bmp']) for i in self.TEST_SAMPLE_IDS]
-            t2_list = ['-'.join([self.LOCATION,str(i),'1.bmp']) for i in self.TEST_SAMPLE_IDS]
-            label_list = ['-'.join([self.LOCATION,str(i),'cm.bmp']) for i in self.TEST_SAMPLE_IDS]
+            t1_list = [join(self.root, self.LOCATION, str(i+1), 'im1') for i in self.TEST_SAMPLE_IDS]
+            t2_list = [join(self.root, self.LOCATION, str(i+1), 'im2') for i in self.TEST_SAMPLE_IDS]
+            label_list = [join(self.root, self.LOCATION, str(i+1), 'gt') for i in self.TEST_SAMPLE_IDS]
 
         return t1_list, t2_list, label_list
 
+
+    @lru_cache(maxsize=8)
     def fetch_image(self, image_name):
-        _, i, t = image_name.split('-')
-        i, t = int(i), int(t[:-4])
-        if self.images[t][i] is None:
-            image = self._bmp_loader(join(self.root, self.LOCATION, str(i+1), 'im'+str(t+1)))
-            self.images[t][i] = image if self.phase == 'train' else self.cropper(image)
-        return self.images[t][i]
+        image = self._bmp_loader(image_name)
+        return image if self.phase == 'train' else self.cropper(image)
 
+    @lru_cache(maxsize=8)
     def fetch_label(self, label_name):
-        index = int(label_name.split('-')[1])
-        if self.labels[index] is None:
-            label = self._bmp_loader(join(self.root, self.LOCATION, str(index+1), 'gt'))
-            label = (label / 255.0).astype(np.uint8)    # To 0,1
-            self.labels[index] = label if self.phase == 'train' else self.cropper(label)
-        return self.labels[index]
+        label = self._bmp_loader(label_name)
+        label = (label / 255.0).astype(np.uint8)    # To 0,1
+        return label if self.phase == 'train' else self.cropper(label)
 
     @staticmethod
     def _bmp_loader(bmp_path_wo_ext):
@@ -74,6 +65,4 @@ class _AirChangeDataset(CDDataset):
         try:
             return default_loader(bmp_path_wo_ext+'.bmp')
         except FileNotFoundError:
-            return default_loader(bmp_path_wo_ext+'.BMP')
-
+            return default_loader(bmp_path_wo_ext+'.BMP')
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-        
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