Amazon Rekognition support for PyZM

[mludvig]

Offload object-detection to Amazon Rekognition service.
Removes the need for GPU or TPU on the ZoneMinder server.

[pliablepixels]

Thanks for this contribution - very useful! Comments added

[mludvig]

Ok, done the required changes. Hope that's all good now :)

[mludvig]

Thanks, that was quick! :)
Would you mind releasing it as a new pyzm version to make things easier to refer to? I've got a pyzm-0.3.53+aws package in my github releases but it'd be better if people didn't need to install it manually.

[lucasnz]

@mludvig I love this idea. I'm getting an error importing the module. Any ideas what might cause this?

Python 3.6.9 (default, Jan 26 2021, 15:33:00)
[GCC 8.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyzm.ml.aws_rekognition as awsr
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<fstring>", line 1
    (bbox=)

[lucasnz]

Changing line 74 to the below resolves the above issue for python 3.6 and 3.7 compatibility:
g.logger.Debug(3, f"bbox={bbox!r} / label={label!r} / conf={conf!r}")

The previous debugging format was introduced in python 3.8

[mludvig]

Thanks @lucasnz I've fixed it in my repo.