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Comments on "On Image Matrix Based Feature Extraction Algorithms

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4 Author(s)
Quanxue Gao ; Xidian Univ., Xi'an ; Lei Zhang ; Zhang, D. ; Jian Yang

A class of image-matrix-based feature extraction algorithms has been discussed earlier. The correspondence argues that 2D principal component analysis and Fisher linear discriminant (FLD) are equivalent to block-based PCA and FLD. In this correspondence, we point out that this statement is not rigorous.

Published in:

Systems, Man, and Cybernetics, Part B: Cybernetics, IEEE Transactions on  (Volume:37 ,  Issue: 5 )