Subsampling

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In computer graphics, subsampling is the process of shrinking an image to a smaller size. It is a type of image scaling, usually used to alter the appearance of an image or to reduce the quantity of information required to store an image.

[edit] Methods of Subsampling

Two commonly used methods of subsampling 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.

[edit] See Also


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