bump opencv version to 4.10.0 (#260)

* bump opencv version to 4.10.0

* doc: version change

* fix version control

* fix version control for efficient sam

demo.py

@@ -3,11 +3,12 @@ import argparse
 import numpy as np
 import cv2 as cv
 
-from mp_palmdet import MPPalmDet
-
 # Check OpenCV version
-assert cv.__version__ >= "4.9.0", \
-       "Please install latest opencv-python to try this demo: python3 -m pip install --upgrade opencv-python"
+opencv_python_version = lambda str_version: tuple(map(int, (str_version.split("."))))
+assert opencv_python_version(cv.__version__) >= opencv_python_version("4.10.0"), \
+       "Please install latest opencv-python for benchmark: python3 -m pip install --upgrade opencv-python"
+
+from mp_palmdet import MPPalmDet
 
 # Valid combinations of backends and targets
 backend_target_pairs = [