Update utils.py

utils.py

@@ -5,7 +5,7 @@ import requests
 import json
 import base64
 
-from PIL import Image
+from PIL import Image, ImageChops
 
 
 jwt_token = ''
@@ -88,10 +88,10 @@ def generate_novelai_image(
     }
     if ref_image is not None:
         payload['parameters']['reference_image'] = image2base64(ref_image)
-    if selection == 'inp' and inp_img is not None:
+    if selection == 'inp' and inp_img['background'].getextrema()[3][1] > 0:
         payload['action'] = "infill"
         payload['model'] = 'nai-diffusion-3-inpainting'
-        payload['parameters']['mask'] = image2base64(inp_img['layers'][0])
+        payload['parameters']['mask'] = image2base64(ImageChops.invert(inp_img['layers'][0]))
         payload['parameters']['image'] = image2base64(inp_img['background'])
         payload['parameters']['extra_noise_seed'] = seed
     if i2i_image is not None and selection == 'i2i':