Bump version 4.9 (#222)

* update benchmark results on i7-12700K

* update benchmark results on edge2

* add benchmark results on Horizon Sunrise X3 PI

* add benchmark results on Jetson Nano B01 (CPU)

* add benchmark results on Raspberry Pi 4B

* add benchmark results on Jetson Nano B01 (GPU)

* add MAIX-III and StarFive benchmark results

* update benchmark results on Khadas VIM3

* update hardware setup info

* bump opencv version requirement to 4.9.0

* update benchmark results on RV1126

* regenerate table

* change * to x in input size text

* regenerate table

* rollback for '\\*'

* regenerate table

* add description for atlas 200i dk a2

* tune table

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Co-authored-by: Wanli <[email protected]>

demo.py

@@ -6,7 +6,7 @@ import cv2 as cv
 from mp_palmdet import MPPalmDet
 
 # Check OpenCV version
-assert cv.__version__ >= "4.8.0", \
+assert cv.__version__ >= "4.9.0", \
        "Please install latest opencv-python to try this demo: python3 -m pip install --upgrade opencv-python"
 
 # Valid combinations of backends and targets