Final answer:
The Telus ad with a parrot on a white background is an example of the figure-ground principle, which distinguishes an object from its surroundings in visual perception.
Step-by-step explanation:
The Telus ad depicting a bright image of a parrot on a stark white background illustrates the principle of figure-ground relationship. This principle focuses on how we differentiate an object (the figure) from its surrounding area (the ground). The bright parrot stands out as the figure against the stark white background, which serves as the ground. Through this contrast, the parrot becomes the focal point of the visual field, capturing the viewer's attention immediately.