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. 2014 May 29;9(5):e97954. doi: 10.1371/journal.pone.0097954

Table 1. Description of 13 CGA features.

CGA Feature (Inline graphic Description Additional Notation
Inline graphic Contrast energy Inline graphic Inline graphic
Inline graphic Contrast inverse moment Inline graphic Inline graphic
Inline graphic Contrast average Inline graphic Inline graphic
Inline graphic Contrast variance Inline graphic Inline graphic
Inline graphic Contrast entropy Inline graphic Inline graphic
Inline graphic Intensity average Inline graphic Inline graphic
Inline graphic Intensity variance Inline graphic Inline graphic
Inline graphic Intensity entropy Inline graphic Inline graphic
Inline graphic Entropy Inline graphic Inline graphic
Inline graphic Energy Inline graphic Inline graphic
Inline graphic Correlation Inline graphic Inline graphic
Inline graphic Information measure 1 Inline graphic Inline graphic
Inline graphic Information measure 2 Inline graphic