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Directional cubic convolution interpolation

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

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Jun 1, 2026
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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. For example, staircase artifacts on diagonal lines and curves are eliminated.

The algorithm resizes an image to 2x its original dimensions, minus 1.

See also

See also

References

References

  1. Zhou, D.; Shen, X.; Dong, W. (24 August 2012). "Image Zooming Using Directional Cubic Convolution Interpolation (Paper and Code)". IET Image Processing. 6 (6): 627–634. doi:10.1049/iet-ipr.2011.0534. Retrieved 13 September 2015 – via MATLAB Central File Exchange.