Fix the order of width and height of original size in SDXL training script (#5382)

* wip

* wip

---------
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>

examples/text_to_image/train_text_to_image_lora_sdxl.py

@@ -839,7 +839,7 @@ def main(args):
         all_images = []
         crop_top_lefts = []
         for image in images:
-            original_sizes.append((image.height, image.width))
+            original_sizes.append((image.width, image.height))
             image = train_resize(image)
             if args.center_crop:
                 y1 = max(0, int(round((image.height - args.resolution) / 2.0)))

examples/text_to_image/train_text_to_image_sdxl.py

@@ -825,7 +825,7 @@ def main(args):
         all_images = []
         crop_top_lefts = []
         for image in images:
-            original_sizes.append((image.height, image.width))
+            original_sizes.append((image.width, image.height))
             image = train_resize(image)
             if args.center_crop:
                 y1 = max(0, int(round((image.height - args.resolution) / 2.0)))