.. _`Match Descriptors`:

.. _`com.sympathyfordata.imageanalysis.match_descriptors`:

Match Descriptors
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.. image:: image_match_descriptors.svg
   :width: 48


Performs brute-force matching between keypoints in the two tables




Documentation
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Performs brute-force matching between keypoints in the two tables


Definition
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Input ports
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    **keypoints 1**  table
        Keypoints 1

    **keypoints 2**  table
        Keypoints 2


Output ports
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    **result**  table
        Table with results




Configuration
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    **Cross-check** (cross)
        Performs matching in both direction and return a match (key1, key2) only if keypoint 2 is the best match for keypoint 1 and keypoint 1 is the best match for keypoint 2
    **Max distance** (max_distance)
        Maximum allowed distance to be regarded as a match
    **Metric** (metric)
        Metric used for comparing keypoints. See scipy.spatial.distance.cdist for details.
    **P** (p)
        P norm to apply for minkowski metrics
    **Prefix 1** (prefix1)
        Prefix added to output names for columns from first input.
    **Prefix 2** (prefix2)
        Prefix added to output names for columns from second input.
    **Result columns** (rescolumns)
        Names of columns to be ignored during matching, separated by a comma. These columns will instead be included in the final output







Examples
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* :download:`Match_features.syx </Examples/Image Analysis/Match_features.syx>`




Implementation
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.. automodule:: node_correlation
    :noindex:

.. class:: MatchDescriptors
    :noindex: