gives a binary image in which white pixels correspond to constant extended minima in image.

MinDetect[image, h]
finds extended minima where the range of values is not greater than h.

MinDetect[data, ...]
applies minima detection to an array of data.

Details and OptionsDetails and Options

  • MinDetect[image] finds regional minima.
  • An extended minimum is a connected set of pixels with values less than their surroundings.
  • MinDetect[image, h] effectively fills minima of depth h or less and returns all remaining constant regional minima.
  • MinDetect[image] is equivalent to MinDetect[image, 0].
  • MinDetect by default treats all pixels surrounding a given pixel as adjacent. A given pixel has eight adjacent pixels in 2D and 26 adjacent pixels in 3D.
  • The option setting CornerNeighbors->False treats only the pixels in the coordinate directions as adjacent, which would include four pixels in 2D and six pixels in 3D.
  • MinDetect works with binary, grayscale, and other images.
  • MinDetect works with 3D as well as 2D images, and also with data arrays of any rank.
  • MinDetect takes a Padding option. The default setting is Padding->1, corresponding to a white background.

ExamplesExamplesopen allclose all

Basic Examples (2)Basic Examples (2)

Find catchment basins of depth 0.3 in a terrain map:

Click for copyable input

Find sharp dark regions in an image:

Click for copyable input
New in 8 | Last modified in 9
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