Update

app.py

@@ -170,19 +170,25 @@ class webui:
         rgb_image = image.convert('RGB')
         lineart = process_XDoG(image_path).convert('L')
         replace_color_image = process_image(rgb_image, lineart).convert('RGBA')
+        
         if alpha:
-            replace_color_image.putalpha(alpha)
+            inverted_alpha = ImageOps.invert(alpha)  # アルファチャンネルを反転
+            replace_color_image.putalpha(inverted_alpha)
+        
         replace_color_image_path = f"{image_name}_noline.png"
         replace_color_image.save(replace_color_image_path)
+        
         lineart_image = lineart.convert('RGBA')
         lineart_alpha = 255 - np.array(lineart) 
-        lineart_image.putalpha(Image.fromarray(lineart_alpha))      
+        lineart_image.putalpha(Image.fromarray(lineart_alpha))
+        
         lineart_image_path = f"{image_name}_lineart.png"
         lineart_image.save(lineart_image_path)
 
         zip_files_list = [replace_color_image_path, lineart_image_path]
         zip_path = f"{image_name}.zip"
         zip_files(zip_files_list, zip_path)
+        
         outputs = [replace_color_image, lineart_image]
         return outputs, zip_path