Directional cubic convolution interpolation

Directional cubic convolution interpolation (DCCI) is an edge-directed image scaling algorithm created by Dengwen Zhou and Xiaoliu Shen.^[1]

By taking into account the edges in an image, this scaling algorithm reduces artifacts common to other image scaling algorithms.^[which?] For example, staircase artifacts on diagonal lines and curves are eliminated.

The algorithm resizes an image to 2x its original dimensions, minus 1.^{[citation needed]}