OpenCV 4 with Python Blueprints - Second Edition

Defining the camera calibration GUI

The GUI is a customized version of the generic BaseLayout:

class CameraCalibration(BaseLayout): 

The layout consists of only the current camera frame and a single button below it. This button allows us to start the calibration process:

    def augment_layout(self):        pnl = wx.Panel(self, -1)        self.button_calibrate = wx.Button(pnl, label='Calibrate Camera')        self.Bind(wx.EVT_BUTTON, self._on_button_calibrate)        hbox = wx.BoxSizer(wx.HORIZONTAL)        hbox.Add(self.button_calibrate)        pnl.SetSizer(hbox)

For these changes to take effect, pnl needs to be added to the list of existing panels:

self.panels_vertical.Add(pnl, flag=wx.EXPAND | wx.BOTTOM | wx.TOP,                                 border=1)

The rest of the visualization pipeline is handled by the ...