Image.cannyEdgeDetectionTo Method

Module: Image

Definition

Applies Canny edge detection to a grayscale image.

The Canny edge detector uses a multi-stage algorithm to detect edges in images.

Note

Only grayscale 8-bit images are supported.

void cannyEdgeDetectionTo(double lowThreshold, double highThreshold, Image dstImage)

Parameters

lowThreshold double

in First threshold for the hysteresis procedure (lower values detect more edges).

highThreshold double

in Second threshold for the hysteresis procedure (must be greater than low_threshold).

dstImage Image

in The destination Image that receives the edge-detected image.

Exceptions

FaceException

An error has occurred during Face Library execution.