Aliasing :
It is the visual stair stepping of edges that occur in a image.
- Aliasing problem is due to low resolution of an image.
- It may occur due to the device or file is not high enough to represent a smooth curve.
Anti-aliasing :
It is the smoothing of the image or sound roughness caused by aliasing.
- Anti-aliasing is a method of smoothing out the pixels in a raster image.
- If the image is zoomed out a bit, the human eye can no longer notice the slight change that anti-aliasing creates.
Examples :