Definition:
Antialiasing is to smoothing of the image caused by aliasing. With images, approaches include adjusting pixel positions or setting pixel intensities so that there is a more gradual transition between the color of a line and the background color.
Let us know about aliasing,
What is aliasing?
Aliasing is a phenomenon that occurs when sampling a continuous function with insufficient resolution.
Figure: Aliased image
What is anti-aliasing?
Antialiasing is the application of techniques that reduce or eliminate aliasing.
Figure: Antialiased image
Differences:
Aliasing |
Anti-aliasing |
In a digital image, aliasing manifests itself as a stair case pattern or a rippling effect. | Antialiasing manifests closing effects of the image curves. |
It doesn't show like real world objects. | It shows like real world objects. |
It appears as image curve in pixel format. | It fills the image curve with the related color. |
It shows jaggling effect and disturbs the image. | It gives sharpness to the image to view. |
Table: Differences between Aliasing and antialiasing