An Improved EMD-Based Dissimilarity Metric for Unsupervised Linear Subspace Learning

Figure 10

The recognition rates on noise, geometric distortion, slight translation, and slight rotation AR face databases over “F1” and “F2” features.

(a) Noise

(b) Barrel distortion

(c) Complex geometric distortion

(d) Pincushion distortion

(e) Slight translation

(f) Slight rotation