Research Article

A Novel Multiscale Edge Detection Approach Based on Nonsubsampled Contourlet Transform and Edge Tracking

Figure 5

The coefficients pattern for some typical locations across directional subbands at a fixed scale. (a) Representative points on the test image. (b)–(e) NSCT pattern , as a function of for the points indicated in (a). (f) Representative points on the test image.
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