KeyPoint

Core and matricestypeOpenCV 5.0.0

import type { KeyPoint } from '@banou/opencv-wasm'

namespace KeyPoint //////////////////////////////// Data structure for salient point detectors.

The class instance stores a keypoint, i.e. a point feature found by one of many available keypoint detectors, such as Harris corner detector, #FAST, %StarDetector, %SURF, %SIFT etc.

The keypoint is characterized by the 2D position, scale (proportional to the diameter of the neighborhood that needs to be taken into account), orientation and some other parameters. The keypoint neighborhood is then analyzed by another algorithm that builds a descriptor (usually represented as a feature vector). The keypoints representing the same object in different images can then be matched using %KDTree or another method.

export type KeyPoint = {
  angle: number,
  class_id: number,
  octave: number,
  pt: Point2f,
  response: number,
  size: number
};

Upstream declaration ↗

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