Openpose: Favour request: Can I get keypoint json output as stdout from commandline?

[achbogga]

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Issue summary

Executed command (if any)

Note: add --logging_level 0 to get higher debug information.

OpenPose output (if any)

Type of issue

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Your system configuration

Installation mode: CMake or sh script or manual Makefile installation.
Operating system (lsb_release -a in Ubuntu):
CUDA version (cat /usr/local/cuda/version.txt in most cases):
cuDNN version:
GPU model (nvidia-smi in Ubuntu):
Caffe version: Default from OpenPose or custom version.
OpenCV version: installed with apt-get install libopencv-dev (Ubuntu) or default from OpenPose (Windows) or OpenCV 2.X or OpenCV 3.X. Especify full version (e.g. 3.1 or 2.4.9)
Generation mode (only for Ubuntu): Makefile + Makefile.config (default, Ubuntu) or CMake (Ubuntu, Windows) or Visual Studio (Windows).
Compiler (gcc --version in Ubuntu):

I wish to to use the keypoint information and do something with it. But, it would be great to get it in real-time on the commandline so that there is no os io read write lag to do something with it in real-time.

Thanks and regards
Achyut

[gineshidalgo99]

You cannot get points from command line, but can either:
1) Saving JSON/XML/YML with the easy-to-use demo.
2) OR add OpenPose to your C++ program. Check the examples/tutorial_wrapper/ tutorials for that.
Best

[hellochar]

@gineshidalgo99 could I request the demo app support writing JSON to stdout? I need to process realtime keypoints from a webcam. I'm currently using --write_json and then periodically ls-ing the folder to find the latest frame but this won't work for a long-running process (I'd like to keep the process on for ~3 days at least). Simply streaming the data to stdout would allow me to pipe the data to other applications that can handle the JSON in real time as it comes in.

[riebling]

what about piping the stdout of tail -f <json output> (I am wanting to try the same kind of thing)