Upload preprocess.py

src/preprocess.py

@@ -0,0 +1,13 @@
+# preprocess.py placeholder
+import cv2
+import numpy as np
+
+IMG_SIZE = (224, 224)
+
+def preprocess_frame(frame):
+    frame = cv2.resize(frame, IMG_SIZE)
+    frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
+    frame = np.expand_dims(frame, axis=0)
+    frame = frame / 255.0
+    return frame
+