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EURASIP Journal on Advances in Signal Processing
Figure 3 | EURASIP Journal on Advances in Signal Processing

Figure 3

From: A Multifactor Extension of Linear Discriminant Analysis for Face Recognition under Varying Pose and Illumination

Figure 3

Low-dimensional representations of training images obtained by PCA and MPCA. (a) the PCA projections of 9 subjects' face images generated by varying viewpoints under one lighting condition. (b) the viewpoint parameters obtained by MPCA. (c) the PCA projections of 9 subjects' face images generated by varying lighting conditions under one viewpoint. (d) the lighting parameters obtained by MPCA.

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