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Table 2 Precision of features on edges.

From: Texture Classification for 3D Urban Map

  Class 1 Class 2 Class 3 Class 4 All
Sharp edges 0.92 0.62 0.38 0.52 0.61
Wavelet coeffs 0.92 0.54 0.60 0.76 0.71
Directionality 0.88 0.44 0.34 0.74 0.60
Anisotropic diffusion 0.88 0.66 0.38 0.86 0.70