Update & improve gen2 color isp raw example

[VanDavv]

I tried to migrate this example to latest DepthAI Gen2 API (commit hash 45765d01ad9c7d8d9ae99ca0f76c5b03b706a1c4), and got the following error after running against this version

Traceback (most recent call last):
  File "/home/vandavv/dev/luxonis/depthai-experiments/gen2-color-isp-raw/main.py", line 40, in <module>
    cam.setEnablePreviewStillVideoStreams(False)
AttributeError: 'depthai.ColorCamera' object has no attribute 'setEnablePreviewStillVideoStreams'

This example also lacks a fixed requirements version, README.md and command line parameters

[themarpe]

I think that this targets @alex-luxonis branch https://github.com/luxonis/depthai-python/tree/gen2_imagemanip_rotate

[alex-luxonis]

It's based on https://github.com/luxonis/depthai-python/compare/gen2_develop...gen2_camera_isp_raw And there's a local requirements.txt pointing to a working depthai library for now. I'll integrate with the latest.

[VanDavv]

Thanks!

[franva]

Hi @VanDavv @alex-luxonis and @themarpe , this issue comes back on version 2.9.0.0. I am running the depthai_demo.py on RPi 4 with Python 3.7.3 all dependencies installed.

$ python3 depthai_demo.py -cnn deeplabv3p_person

/usr/lib/python3/dist-packages/requests/__init__.py:91: RequestsDependencyWarning: urllib3 (1.26.6) or chardet (3.0.4) doesn't match a supported version!
  RequestsDependencyWarning)
Using depthai module from:  /home/pi/.local/lib/python3.7/site-packages/depthai.cpython-37m-arm-linux-gnueabihf.so
Depthai version installed:  2.9.0.0
Available devices:
[0] 14442C10013762D700 [X_LINK_UNBOOTED]
Enabling low-bandwidth mode due to low USB speed... (speed: UsbSpeed.HIGH)
Creating MJPEG link for ColorCamera node and color xlink stream...
Traceback (most recent call last):
  File "depthai_demo.py", line 148, in <module>
    pm.create_color_cam(nn_manager.input_size if conf.useNN else conf.previewSize, rgb_res, conf.args.rgb_fps, conf.args.full_fov_nn, xout=Previews.color.name in conf.args.show)
  File "/home/pi/Work/MyBuddy/depthai/depthai_helpers/managers.py", line 662, in create_color_cam
    self.mjpeg_link(self.nodes.cam_rgb, self.nodes.xout_rgb, self.nodes.cam_rgb.video)
  File "/home/pi/Work/MyBuddy/depthai/depthai_helpers/managers.py", line 623, in mjpeg_link
    if isinstance(node, dai.ColorCamera) or isinstance(node, dai.MonoCamera):
AttributeError: module 'depthai' has no attribute 'ColorCamera'

[VanDavv]

For the reference, issue mentioned by @franva was resolved in this PR - https://github.com/luxonis/depthai/pull/446