ImageCorrespondingPoints

ImageCorrespondingPoints[image1,image2]
finds a set of matching interest points in and and returns their pixel coordinates.

Details and OptionsDetails and Options

  • ImageCorrespondingPoints uses ImageKeypoints to find candidate corresponding points.
  • ImageCorrespondingPoints[image1,image2] returns an expression of the form , where the are lists of pixel coordinates representing the matching points in .
  • The following options can be specified:
  • KeypointStrength0minimum strength of the keypoints
    MaskingAllregion of interest
    MaxFeaturesAllmaximum number of keypoints
    TransformationClassNonegeometrical relation between points
  • With the setting Masking->roi, the set of points is restricted so that the returned points of all lie within the region of interest.
  • With the settting MaxFeatures->n, at most n corresponding points with largest average keypoint strength are returned.
  • Possible settings for TransformationClass include:
  • Noneno geometric constraints
    "Translation"translation only
    "Rigid"translation and rotation
    "Similarity"translation, rotation, and scaling
    "Affine"linear transformation and translation
    "Perspective"linear fractional transformation
    "Epipolar"epipolar transformation, mapping a point in one image to a line in the other image
Introduced in 2010
(8.0)
| Updated in 2014
(10.0)