Update app.py

app.py

@@ -149,11 +149,7 @@ def infer(use_custom_model, model_name, weight_name, custom_lora_weight, image_i
         image = Image.fromarray(image)
     
     if preprocessor == "lineart": 
-        image = load_image(image_in)
-        image = np.array(image)
-        image = image[:, :, None]
-        image = np.concatenate([image, image, image], axis=2)
-        image = Image.fromarray(image)
+        image = Image.open(image_in)
     
     if use_custom_model: