1 September 2003 Fast algorithm for discrete cosine transform (DCT)-domain image downsampling using Winograd DCTs
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Optical Engineering, 42(9), (2003). doi:10.1117/1.1599842
Abstract
A fast algorithm for discrete cosine transform (DCT)-domain image resizing is presented. To reduce computations, fast Winograd DCTs are applied to a recently reported image resizing scheme that uses DCT low-pass truncated approximation. Our fast algorithm yields significant improvement in computational complexity over the fast algorithm of the reported method.
Donyeon Kim, Yoonsik Choe, "Fast algorithm for discrete cosine transform (DCT)-domain image downsampling using Winograd DCTs," Optical Engineering 42(9), (1 September 2003). http://dx.doi.org/10.1117/1.1599842
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KEYWORDS
Image compression

Image processing

Video compression

Fourier transforms

Video

Yield improvement

Data processing

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