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cvGoodFeaturesToTrack

Basic

Module: OpenCV

Determines strong corners on an image.

Name Type Range Description
Input value
 inImage Image Input single-channel UINT8 or REAL image.
Input value
 inMaxCorners Integer 0 - Maximum number of corners to return. If there are more corners than are found, the strongest of them is returned.
Input value
 inQualityLevel Real 0.001 - 1.0 Parameter characterizing the minimal accepted quality of image corners.
Input value
 inMinDistance Real 0.0 - Minimum possible Euclidean distance between the returned corners.
Input value
 inMask Region* Region of interest.
Input value
 inBlockSize Integer 1 - Size of an average block for computing a derivative covariation matrix over each pixel neighborhood.
Input value
 inUseHarrisDetector Bool Parameter indicating whether to use a Harris detector or cornerMinEigenVal.
Input value
 inK Real Free parameter of the Harris detector.
Output value
 outCorners Point2DArray Output array of detected corners.

Errors

This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type Description
DomainError Input image must be single-channel UINT8 or REAL in cvGoodFeaturesToTrack.

Complexity Level

This filter is available on Basic Complexity Level.