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EXTERNAL ARROW

This repository is an example for registering external plugins with kwiver and diva wheel

REQUIREMENTS

  1. libgl1-mesa-dev
  2. libexpat1-dev
  3. libgtk2.0-dev
  4. liblapack-dev
  5. libpython3-dev
  6. kwiver
  7. diva-framework

INSTALLATION

EXTERNAL ARROW

pip install external-arrow

VERIFYING REGISTRATION

plugin_explorer --algo image_object_detector

Plugins that implement type "image_object_detector"
---------------------
Info on algorithm type "image_object_detector" implementation "TestObjectDetector"
  Plugin name: TestObjectDetector
        Test to verify if a python algorithm can be registered externally
---------------------
Info on algorithm type "image_object_detector" implementation "external_arrow.arrow.test_object_detector"
  Plugin name: external_arrow.arrow.test_object_detector
        Version: 1.0
        Test to verify if a cpp algorithm can be registered externall
---------------------
Info on algorithm type "image_object_detector" implementation "create_detection_grid"
  Plugin name: create_detection_grid
	    Create a grid of detections across the input image.
---------------------
Info on algorithm type "image_object_detector" implementation "example_detector"
  Plugin name: example_detector
	    Simple example detector that just creates a user-specified bounding box.
---------------------
Info on algorithm type "image_object_detector" implementation "hough_circle"
  Plugin name: hough_circle
        Hough circle detector
---------------------
Info on algorithm type "image_object_detector" implementation "detect_heat_map"
  Plugin name: detect_heat_map
	    OCV implementation to create detections from heatmaps

TestObjectDetector and external_arrow.arrow.test_object_detector are python and c++ arrows registered by external_arrow

REGISTERING ARROW/PROCESSES FROM EXTERNAL PACKAGE

Kwiver uses entrypoints to register vital arrows and sprokit processes.

Language Entrypoint
C++ kwiver.cpp_search_paths
python kwiver.python_plugin_registration

PYTHON ARROW/PROCESS

The python process and arrows are registered using kwiver.python_plugin_registration in setup.py. Every process and arrows in the external package must be registered individually by specifying a unique key-value pair associated with the entrypoint . For example

'kwiver.python_plugin_registration':
[ 'simple_detector=external_arrow.arrow.test_object_detector']

where external_arrow.arrow.test_object_detector is python arrow containing __vital_algorithm_register__

C++ ARROW/PROCESS

The c++ process and arrows are registered using kwiver.cpp_search_paths in setup.py. For registering c++ libraries, kwiver requires absolute path to the directory where the c++ libraries are present in the package. For example

'kwiver.cpp_search_paths':
['simple_detector=external_arrow.register_cpp_arrow:get_cpp_path']

where external_arrow.register_cpp_arrow:get_cpp_path is a python function that returns the directory where c++ libraries for external_arrow are present in the package.

Note: Kwiver wheel does not provide the development environment for c++ extension that depend on kwiver. A c++ vital arrow and sprokit process based extension would be built against the static build of fletch and kwiver.

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Files for external-arrow, version 0.0.2
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Filename, size external_arrow-0.0.2-cp36-cp36m-manylinux2014_x86_64.whl (121.2 kB) File type Wheel Python version cp36 Upload date Hashes View hashes
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Filename, size external_arrow-0.0.2-cp38-cp38-manylinux2014_x86_64.whl (121.2 kB) File type Wheel Python version cp38 Upload date Hashes View hashes

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