PyCamTest.py

import pypylon
from matplotlib.pyplot import figure, draw, pause

#
Nblock = 10  # TODO workaround for Basler too many frames error
Nblocks = 100  # arbitrary number of frames to plot


def connect(camdev, camind=0):
    cam = pypylon.factory.create_device(camdev[camind])

    cam.open()
    cam.properties['PixelFormat'] = 'RGB8'
    return cam


def simpleloop(cams):
    cam = connect(cams)

    print('exposure time [millisec]:', cam.properties['ExposureTime'] / 1e3)
    # cam.properties['ExposureTime'] = 1000

    # cam.properties['DeviceLinkThroughputLimitMode'] = 'On'

    # %% movie
    ax = figure().gca()
    h = ax.imshow(list(cam.grab_images(1))[0])  # TODO workaround for grab_image() broken
    ht = ax.set_title('')
    cam.close()

    for i in range(Nblocks):

        cam = connect(cams, 0)

        for j, I in enumerate(cam.grab_images(Nblock)):  # grab_images argument is how many images to yield
            h.set_data(I)
            # ht.set_text(f'Image # {i*Nblock+j} / {Nblocks*Nblock}')
            draw();
            pause(0.01)

        cam.close()


if __name__ == '__main__':
    print('Basler Pylon API version:', pypylon.pylon_version.version)

    cams = pypylon.factory.find_devices()
    print(cams)

    simpleloop(cams)