Even Discrete Cosine Transform The Chinese University of Hong Kong

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Even Discrete Cosine Transform The Chinese University of Hong Kong
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Even Discrete Cosine Transform The Chinese University of Hong Kong Math 3360: Mathematical Imaging Lecture 8: Even Discrete Cosine Transform Prof. Ronald Lok Ming Lui Department of Mathematics, The Chinese University of Hong Kong

Definition of Even Discrete Cosine Transform 1D and 2D Even Discrete Cosine Transform: 1D: 2D: For details, please refer to Supplementary note 5

Elementary images of EDCT decomposition

Reconstruction w/ EDCT decomposition = using 1x1 elementary images (first 1 row and first 1 column elementary images; = using 2x2 elementary images (first 2 rows and first 2 column elementary images…and so on…

Comparison of errors The flower example:

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