This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)

MaxDetect

MaxDetect[image]
gives a binary image in which white pixels correspond to constant extended maxima in image.
MaxDetect
finds extended maxima where the range of values is not greater than h.
  • An extended maximum is a connected set of pixels with values greater than their surroundings.
  • MaxDetect effectively chops maxima of height h or less and returns all remaining constant regional maxima.
  • MaxDetect by default treats all eight pixels surrounding a given pixel as adjacent.
  • The option setting CornerNeighbors->False treats only the four pixels in the coordinate directions as adjacent.
  • MaxDetect works with binary, grayscale, and other images.
Find areas in an elevation map that rise above their surroundings by at least 0.2:
Find the stars and stripes in a flag:
Find areas in an elevation map that rise above their surroundings by at least 0.2:
In[1]:=
Click for copyable input
Out[1]=
 
Find the stars and stripes in a flag:
In[1]:=
Click for copyable input
Out[1]=
Use MaxDetect and MinDetect to find salt-and-pepper noise:
Detect corners in an image:
Detect bright stars and use them as a mask for inpainting:
Compute the ultimate erosion of objects in an image:
New in 8