Adjusted scale factor

The initial scale factor was calculated from just a few images. 0.24447420268654824 . The new scale factor was calculated over a much larger image set, so it is likely more accurate. 0.2614

config.json

@@ -23,7 +23,7 @@
   "norm_num_groups": 32,
   "out_channels": 3,
   "sample_size": 512,
-  "scaling_factor": 0.24447420268654824,
+  "scaling_factor": 0.2614,
   "shift_factor": null,
   "up_block_types": [
     "UpDecoderBlock2D",