# Custom distance with FLANN

**URL:** <https://forum.opencv.org/t/custom-distance-with-flann/8659>\
**Category:** C++\
**Tags:** flann\
**Created:** [May 6, 2022, 2:33pm UTC](https://forum.opencv.org/t/custom-distance-with-flann/8659 "2022-05-06T14:33:33Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![L\_D](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.opencv.org/l_d/32/3920_2.png) [@L\_D](https://forum.opencv.org/u/L_D)\
**Post date:** [May 6, 2022, 2:33pm UTC](https://forum.opencv.org/t/custom-distance-with-flann/8659/1 "2022-05-06T14:33:33Z")

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Is there a way to define our own distance for FLANN tool in OpenCV.