Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock () or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

SWIGIT, Figure 1

Figure 1. This example illustrates the effects of linear filtering. Left: original image; Middle: blurred image; Right: sharpened image.

Figure 1 is a series of three side-by-side photographs of the same line of cars parked along a city curb. The left is the original, the middle is blurry, and the right shows a sharp photograph with the appearance of artifacts.

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