Subsampling

In computer graphics, subsampling is the process of shrinking an image to a smaller size. It is a type of image scaling. Two commonly used methods are replacement and interpolation. Replacement selects a single pixel from a group and uses it to represent the entire group. Interpolation uses a statistical sample (such as the mean) to create a new representation of the entire group.

See Also

• Resampling
• Chroma subsampling
• Sampling (signal processing)