gevd_detector_params.h File Reference

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Detailed Description

non-display-based interface class

The parameter mixin for VanDuc's edge detector.

• float smooth : The standard deviation of the Gaussian smoothing kernel.

• float noise_weight: A weighting factor that determines the relative proportion of sensor noise level and texture noise level as measured in a ROI in the center of the image. The nominal value of 0.5 gives equal weight to both.

• float noise_multiplier: Overall scale factor for noise

• bool automatic_threshold: If true then the noise level is determined from image measurements.

• float filterFactor: An overall scale factor for determining gradient threshold Nominally 2.0.

• float contourFactor, junctionFactor: Scale factors for determining the gradient threshold. Nominally 1.0. contourFactor is in effect for edgels on contours (boundaries). junctionFactor is in effect during the extension of contours at endpoints. To extend contours aggressively, use a low value of junctionFactor, i.e., .5.

• bool junctionp: If true, then recover junctions by extending contours. Nominally true.

• Contour Following:
• float hysteresisFactor: A scale factor which is multiplied by the image noise level to determine the minimum gradient threshold in following an edgel contour. Nominally 2.0.

• int minLength: The minimum length contour to constructed.

• float minJump: A scale factor which is multiplied by the image noise level to determine the gradient threshold at a junction. Nominally 1.0.

• float maxGap: The width of a gap which can be crossed in forming a junction with another edgel contour. Nominally sqrt(5) = 2.24.

• bool spacingp: If true, then equalize the sub-pixel locations of each edgel by averaging the adjacent left a right neighbor locations. Nominally true.

• bool borderp: If true, insert virtual contours at the border to close regions. Nominally false.

Author:

Joseph L. Mundy - GE Corporate Research and Development

Date:

November 1997

Definition in file gevd_detector_params.h.

#include "gevd_param_mixin.h"

Go to the source code of this file.

Classes
class	gevd_detector_params

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