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. 2009 Apr 3;5(4):e1000336. doi: 10.1371/journal.pcbi.1000336

Table 1. Comparision of the Multi-Information Reduction for Chromatic and Achromatic Images.

Absolute Difference Relative Difference
Color Gray Color Gray
RND-PIX −4.0694±0.0043 −3.1252±0.0043
SYM-RND −0.0593±0.0004 −0.0259±0.0006 Inline graphic 1.44±0.01 0.82±0.02
PCA-RND −0.0627±0.0008 −0.0353±0.0011 Inline graphic 1.52±0.02 1.12±0.03
ICA-RND −0.1345±0.0008 −0.0767±0.0008 Inline graphic 3.20±0.02 2.39±0.02

Differences in the multi-information reduction between various decorrelation transforms (SYM, PCA, ICA) relative to a random decorrelation transform (RND) compared to the multi-information reduction achieved with the random decorrelation transform relative to the original pixel basis (RND-PIX). The absolute multi-information reduction is given in bits/component on the left hand side. The right hand side shows how much more the special decorrelation transforms SYM, PCA and ICA can reduce the multi-information relative to the random (RND) one.