button3 = QPushButton('Previous Image')
button3.setToolTip('Click to get the previous image')
button3.clicked.connect(previous_image)
layout.addWidget(button3, 2, 0)
button4 = QPushButton('Detect')
button4.setToolTip('Click to detect objects')
button4.clicked.connect(Detect_objects)
layout.addWidget(button4, 3, 2)
groupbox = QGroupBox("Select one out of the three models")
ha = QVBoxLayout()
button5 = QRadioButton('FRCNN')
button5.model = "FRCNN"
button5.toggled.connect(lambda: select_model(button5))
ha.addWidget(button5)
button6 = QRadioButton('Mobilenet')
button6.model = "Mobilenet"
button6.toggled.connect(lambda: select_model(button6))
ha.addWidget(button6)
button7 = QRadioButton('SSD')
button7.model = "SSD"
button7.toggled.connect(lambda: select_model(button7))
ha.addWidget(button7)
groupbox.setLayout(ha)
layout.addWidget(groupbox, 0, 2)
