cvCannyEdgeDetector¶
- MLModule¶
author
package
dll
definition
Purpose¶
The module cvCannyEdgeDetector finds edges in a 2D image using the [Canny86] algorithm.
Note: This module only works on images with the data type uint8.
[Canny86] J. Canny. A Computational Approach to Edge Detection, IEEE Trans. on Pattern Analysis and Machine Intelligence, 8(6), pp. 679-698 (1986).
Windows¶
Default Panel¶
Input Fields¶
input0¶
- name: input0, type: Image¶
Output Fields¶
output0¶
- name: output0, type: Image¶
Parameter Fields¶
Visible Fields¶
Threshold1¶
- name: threshold1, type: Double, default: 255¶
Sets the first threshold for the hysteresis procedure.
Threshold2¶
- name: threshold2, type: Double, default: 128¶
Sets the second threshold for the hysteresis procedure.
Aperture Size¶
- name: apertureSize, type: Integer, default: 3¶
Sets the aperture size for the Sobel() operator; currently, only the sizes 3, 5 and 7 are supported.
Use L2 gradient¶
- name: useL2gradient, type: Bool, default: FALSE¶
Sets a flag that indicates whether a more accurate L2 norm is used instead of the L1 norm.