Method GoodFeaturesToTrackWithQuality

Namespace

OpenCvSharp

Assembly

OpenCvSharp.dll

GoodFeaturesToTrackWithQuality(InputArray, int, double, double, InputArray, OutputArray, int, int, bool, double)

Same as GoodFeaturesToTrack, but returns also quality measure of the detected corners.

public static Point2f[] GoodFeaturesToTrackWithQuality(InputArray src, int maxCorners, double qualityLevel, double minDistance, InputArray mask, OutputArray cornersQuality, int blockSize = 3, int gradientSize = 3, bool useHarrisDetector = false, double k = 0.04)

Parameters

src InputArray

Input 8-bit or floating-point 32-bit, single-channel image.

maxCorners int

Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.

qualityLevel double

Parameter characterizing the minimal accepted quality of image corners.

minDistance double

Minimum possible Euclidean distance between the returned corners.

mask InputArray

Region of interest. If the image is not empty (it needs to have the type CV_8UC1 and the same size as image ), it specifies the region in which the corners are detected.

cornersQuality OutputArray

Output vector of quality measure of the detected corners.

blockSize int

Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.

gradientSize int

Aperture parameter for the Sobel operator used for derivatives computation.

useHarrisDetector bool

Parameter indicating whether to use a Harris detector

k double

Free parameter of the Harris detector.

Returns

Point2f[]

Output vector of detected corners.