Update image preprocessing using cv2

main.py

@@ -125,6 +125,9 @@ def predict_bilateral(files):
 
     for path in filtered_files:
         image = np.array(Image.open(str(path)))
+        image = cv2.normalize(
+            image, None, 0, 255, cv2.NORM_MINMAX, dtype=cv2.CV_8U)
+
         images.append(image)
 
     images = np.asarray(images).astype(np.float32)