add annotations

README.md

@@ -2,6 +2,7 @@
 pretty_name: Snacks
 task_categories:
 - image-classification
+- object-detection
 - computer-vision
 license: cc-by-4.0
 ---
@@ -52,6 +53,21 @@ watermelon    350
 
 To save space in the download, the images were resized so that their smallest side is 256 pixels. All EXIF information was removed.
 
+### Annotations
+
+Included in the **annotations** folder are three CSV files with bounding box annotations for the images in the dataset, although not all images have annotations and some images have multiple annotations. 
+
+The columns in the CSV files are: 
+
+- `image_id`: the filename of the image without the .jpg extension
+- `x_min, x_max, y_min, y_max`: normalized bounding box coordinates, i.e. in the range [0, 1]
+- `class_name`: the class that belongs to the bounding box
+- `folder`: the class that belongs to the image as a whole, which is also the name of the folder that contains the image
+
+### Data Splits
+
+Train, Test, Validation
+
 ## Licensing Information
 
 Just like the images from Google Open Images, the snacks dataset is licensed under the terms of the Creative Commons license.