CreateML fixes (#906)

Support createML format

libs/create_ml_io.py

@@ -32,6 +32,7 @@ class CreateMLWriter:
 
         output_image_dict = {
             "image": self.filename,
+            "verified": self.verified,
             "annotations": []
         }
 
@@ -107,12 +108,15 @@ class CreateMLReader:
         with open(self.json_path, "r") as file:
             input_data = file.read()
 
-        output_dict = json.loads(input_data)
-        self.verified = True
+        # Returns a list
+        output_list = json.loads(input_data)
+
+        if output_list:
+            self.verified = output_list[0].get("verified", False)
 
         if len(self.shapes) > 0:
             self.shapes = []
-        for image in output_dict:
+        for image in output_list:
             if image["image"] == self.filename:
                 for shape in image["annotations"]:
                     self.add_shape(shape["label"], shape["coordinates"])

libs/labelFile.py

@@ -48,6 +48,7 @@ class LabelFile(object):
                                 image_shape, shapes, filename, local_img_path=image_path)
         writer.verified = self.verified
         writer.write()
+        return
 
 
     def save_pascal_voc_format(self, filename, shapes, image_path, image_data,