File "Object_detection_picamera.py", line 137, in <module> error

pi@raspberrypi:~/tensorflow1/models/research/object_detection $ python3 Object_detection_picamera.py
Traceback (most recent call last):
  File "Object_detection_picamera.py", line 137, in <module>
    frame.setflags(write=1)
ValueError: cannot set WRITEABLE flag to True of this array

[EdjeElectronics]

For now, I have changed line 136 in Object_detection_picamera.py from

frame = frame1.array

to

frame = np.copy(frame1.array)

[yeroc-sebrof]

Bumping this for the Pi 4B, running as root still getting this ValueError. The np.copy() function takes up a fair chunk of real-time processing so I’d really like to set writable. I’ve tested all the way back from 1.13 to 1.06 and this issue is present for all versions that had PiRGBAnalysis. Looking into the other flags that are set it appears that the OWNMEMORY flag isn’t set, not sure if this means that the frame data is in GPU memory or some onboard camera memory?

Should I be using something other than PiRGBAnalysis for performing JIT edits? I’d assume something like a custom write format would have performed any copy to main memory at a lower level and would be faster than a np.copy()?