Move inference onto the API

rpi/hardware/camera/camera.py

@@ -23,13 +23,13 @@ class Camera:
             self.cap.release()
             self.cap = None
 
-    def take_photo(self) -> np.ndarray:
+    def take_photo(self) -> bytes:
         self.open()
         try:
             ret, frame = self.cap.read()
             if not ret:
                 raise RuntimeError("Failed to capture image")
-            return frame
+            return cv2.imencode('.jpg', frame, [int(cv2.IMWRITE_JPEG_QUALITY), 80])[1].tobytes()
         finally:
             self.close()