small typos found (#26988)

just very small typos found

src/transformers/image_transforms.py

@@ -189,7 +189,7 @@ def to_pil_image(
     elif not isinstance(image, np.ndarray):
         raise ValueError("Input image type not supported: {}".format(type(image)))
 
-    # If the channel as been moved to first dim, we put it back at the end.
+    # If the channel has been moved to first dim, we put it back at the end.
     image = to_channel_dimension_format(image, ChannelDimension.LAST, input_data_format)
 
     # If there is a single channel, we squeeze it, as otherwise PIL can't handle it.
@@ -593,7 +593,7 @@ def corners_to_center_format(bboxes_corners: TensorType) -> TensorType:
     """
     Converts bounding boxes from corners format to center format.
 
-    corners format: contains the coodinates for the top-left and bottom-right corners of the box
+    corners format: contains the coordinates for the top-left and bottom-right corners of the box
         (top_left_x, top_left_y, bottom_right_x, bottom_right_y)
     center format: contains the coordinate for the center of the box and its the width, height dimensions
         (center_x, center_y, width, height)