Fix numpy error

app.py

@@ -3,6 +3,7 @@ import dlib
 import streamlit as st
 from PIL import Image
 from transformers import pipeline
+import numpy as np
 
 # Load pre-trained image classification model from transformers library
 model = pipeline("image-classification", model="0x70DA/down-syndrome-classifier")
@@ -12,7 +13,7 @@ detector = dlib.get_frontal_face_detector()
 
 # Define the prediction function
 def predict(image):
-    img = cv2.cvtColor(image, cv2.COLOR_RGB2BGR)
+    img = cv2.cvtColor(np.array(image), cv2.COLOR_RGB2BGR)  # Convert PIL Image to NumPy array
     faces = detector(img)
     if len(faces) > 0:
         face = faces[0]  # Assuming there's only one face in the image