Update RDD_2020.py

RDD_2020.py

@@ -75,54 +75,51 @@ class RDD2020_Dataset(datasets.GeneratorBasedBuilder):
         )
 
     def _split_generators(self, dl_manager):
-        data_dir = dl_manager.download_and_extract(_URLS["dataset"])
+        # Assuming the URLs are the GitHub raw URLs to the country directories within each split
+        train_dir = "https://github.com/ShixuanAn/RDD_2020/tree/main/train"
+        test1_dir = "https://github.com/ShixuanAn/RDD_2020/tree/main/test/test/test1"
+        test2_dir = "https://github.com/ShixuanAn/RDD_2020/tree/main/test/test/test2"
+
         return [
             datasets.SplitGenerator(
                 name=datasets.Split.TRAIN,
                 gen_kwargs={
-                    "images_dir": os.path.join(data_dir, "train"),
-                    "annotations_dir": os.path.join(data_dir, "train", "annotations"),
+                    "base_path": train_dir,
                     "split": "train",
                 },
             ),
             datasets.SplitGenerator(
                 name="test1",
                 gen_kwargs={
-                    "images_dir": os.path.join(data_dir, "test1"),
-                    "annotations_dir": None,  # No annotations for test1
+                    "base_path": test1_dir,
                     "split": "test1",
                 },
             ),
             datasets.SplitGenerator(
                 name="test2",
                 gen_kwargs={
-                    "images_dir": os.path.join(data_dir, "test2"),
-                    "annotations_dir": None,  # No annotations for test2
+                    "base_path": test2_dir,
                     "split": "test2",
                 },
             ),
         ]
 
-    def _generate_examples(self, images_dir, annotations_dir, split):
-        """Yields examples as (key, example) tuples."""
-        for country_dir in sorted(os.listdir(images_dir)):  # Sort to ensure consistent order
-            country_images_dir = os.path.join(images_dir, country_dir, "images")
-
-            # Check if we are in a test split without annotations
-            if annotations_dir is None:
-                country_annotations_dir = None
-            else:
-                country_annotations_dir = os.path.join(annotations_dir, country_dir, "xmls")
+    def _generate_examples(self, base_path, split):
+        # Iterate over each country directory
+        for country_dir in ['Czech', 'India', 'Japan']:
+            images_dir = f"{base_path}/{country_dir}/images"
+            annotations_dir = f"{base_path}/{country_dir}/annotations/xmls" if split == "train" else None
 
-            for image_file in sorted(os.listdir(country_images_dir)):  # Sort to ensure consistent order
+            # Iterate over each image in the country's image directory
+            for image_file in os.listdir(images_dir):
                 if not image_file.endswith('.jpg'):
                     continue
 
                 image_id = f"{country_dir}_{image_file.split('.')[0]}"
-                image_path = os.path.join(country_images_dir, image_file)
-                if country_annotations_dir:
+                image_path = os.path.join(images_dir, image_file)
+                if annotations_dir:
                     annotation_file = image_id + '.xml'
-                    annotation_path = os.path.join(country_annotations_dir, annotation_file)
+                    annotation_path = os.path.join(annotations_dir, annotation_file)
                     if not os.path.exists(annotation_path):
                         continue
                     tree = ET.parse(annotation_path)
@@ -142,7 +139,7 @@ class RDD2020_Dataset(datasets.GeneratorBasedBuilder):
                 else:
                     crack_type = []
                     crack_coordinates = []
-    
+
                 image_resolution = {"width": 600, "height": 600, "depth": 3}
                 yield image_id, {
                     "image_id": image_id,
@@ -153,5 +150,5 @@ class RDD2020_Dataset(datasets.GeneratorBasedBuilder):
                     "crack_type": crack_type,
                     "crack_coordinates": crack_coordinates,
                 }
-    
+