Digital images can be sharpened using techniques that we will study in Math 313. The images illustrate this sharpening. The image on the left is a blurry, out of focus, image of a house. The image on the right has been sharpened using techniques that we will discuss in Math 313. Notice how details in the fence and in the windows have been significantly enhanced in this sharpened image.
Blurry original image Sharpened image