Update imagefolder.py

imagefolder.py

@@ -5,6 +5,7 @@ from typing import Optional
 import pyarrow as pa
 
 import datasets
+from datasets.tasks import ImageClassification
 
 
 logger = datasets.utils.logging.get_logger(__name__)
@@ -26,10 +27,19 @@ class ImageFolder(datasets.GeneratorBasedBuilder):
     BUILDER_CONFIG_CLASS = ImageFolderConfig
 
     def _info(self):
+        folder=None
+        if isinstance(self.config.data_files, str):
+            folder = self.config.data_files
+        elif isinstance(self.config.data_files, dict):
+            folder = self.config.data_files.get('train', None)
+        if folder is None:
+            raise RuntimeError()
+        classes = sorted([x.name.lower() for x in Path(folder).glob('*/**')])
         return datasets.DatasetInfo(
             features=datasets.Features(
                 {"image_file_path": datasets.Value("string"), "labels": datasets.Value("string")}
             ),
+            task_templates=[datasets.tasks.ImageClassification(image_file_path_column="image_file_path", label_column="labels", labels=classes)]
         )
 
     def _split_generators(self, dl_manager):