pyimagej-from-qt-thread

pyimagej-qt.py

import time

def main():
    import threading

    ij = [None]

    def start_qt_and_ij():
        from PyQt5 import QtCore, QtWidgets
        app = QtWidgets.QApplication([])
        app.setQuitOnLastWindowClosed(True)

        def start_ij():
            import imagej
            print(1)
            ij[0] = imagej.init('sc.fiji:fiji+net.imagej:imagej-legacy', headless=False)
            print(2)
        QtCore.QTimer.singleShot(0, start_ij)
        app.exec_()
    threading.Thread(target=start_qt_and_ij).start()

    while ij[0] is None:
        time.sleep(0.5)
    ij[0].launch()

if __name__ == "__main__":
    main()