In this chapter, we reviewed the functionality OpenCV offers in connection with drawing shapes and text. In connection with shapes, we have seen how to draw very basic shapes (lines, rectangles, and circles), and also more advanced shapes (clip lines, arrows, ellipses, and polygons). In connection with text, we have seen how to draw it and how to render all the available fonts in the OpenCV library. Additionally, we have also covered how to capture mouse events and use them to perform specific actions (for example, drawing a point associated with the (x, y) coordinates of the performed mouse event). Finally, we rendered an analog clock, trying to summarize all the previous concepts of this chapter.
In the next chapter, we are going to see the main concepts concerning image processing techniques. We will also tackle how to perform basic image transformations (for example...
