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OpenCV By Example by Vinícius Godoy, David Millán Escrivá, Prateek Joshi

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The graphical user interface with QT

The QT user interface gives us more control and options to work with our images.

The interface is divided into three main areas:

  • The toolbar
  • The image area
  • The status bar
    The graphical user interface with QT

The toolbar has the following buttons from left to right:

  • Four buttons for panning
  • Zoom x1
  • Zoom x30 and show labels
  • Zoom in
  • Zoom out
  • Save the current image
  • Show the properties windows

These options can be seen more clearly in the following screenshot:

The graphical user interface with QT

The image area shows an image and a contextual menu when we push the right mouse button over the image. This ...

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