opencv-proto

https://github.com/idlesign/opencv-proto

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Work in progress. Stay tuned.

Description

Allows fast prototyping in Python for OpenCV

Offers primitives and simplified interfaces to streamline prototypes construction in Python.

Facilitates:

Windows construction and management
Trackbar construction
Configuration save/load (including trackbar values)
Key binding (e.g. for trackbar control, configuration save/load)
Video capturing and modification
Work with images
Work with text
Frames transformation

Samples

Color Palette


Let's replace 37 lines of source code from `Trackbar as the Color Palette <https://opencv-python-tutroals.readthedocs.io/en/latest/py_tutorials/py_gui/py_trackbar/py_trackbar.html>`_
tutorial with ``ocvproto``-based implementation:

.. code-block:: python

    from ocvproto.toolbox import WindowManager, Canvas

    with WindowManager() as wm:
        rgb = wm.window.add_trackbar_group(['R', 'G', 'B'], max=255)
        for _ in wm.app.loop():
            wm.set_frame(Canvas(512, 300, color=rgb))


Camera capture

Now let's capture video camera stream into ocvproto.avi file, being able to adjust blur.

Let's also setup config filepath (ocvproto.json) - this allows us to store current trackbar values (s key) and load them (r key). It is useful to restore settings between sessions.

We bind z key to take camera shots.

.. code-block:: python

from ocvproto.toolbox import WindowManager, Camera

with WindowManager() as wm:

    wm.app.set_config('ocvproto.json')

    blur = wm.window.add_trackbar_group(['x', 'y'], 'Blur', default=1)

    with Camera() as cam:
        wm.app.bind_key('z', cam.dump_image)

        for _ in wm.app.loop():
            cam.read()
            cam.blur(blur)
            cam.dump()
            wm.set_frame(cam)

Read the documentation.