MorphologicalPerimeter[image]
picks out the morphological perimeter of regions of foreground in image.
MorphologicalPerimeter[image,t]
treats values above t as foreground.


MorphologicalPerimeter
MorphologicalPerimeter[image]
picks out the morphological perimeter of regions of foreground in image.
MorphologicalPerimeter[image,t]
treats values above t as foreground.
Details and Options

- Morphological perimeter is defined to consist of foreground pixels that are directly adjacent to the background.
- MorphologicalPerimeter works with arbitrary 2D and 3D images, as well as real arrays of any rank.
- MorphologicalPerimeter[image,…] yields a binary image in which pixels considered to be on the morphological perimeter have value 1 and others have value 0.
- MorphologicalPerimeter[image] is equivalent to MorphologicalPerimeter[image,0].
- The following options can be specified:
-
CornerNeighbors True whether to include corner neighbors Padding 0 padding method
Examples
open all close allOptions (3)
CornerNeighbors (2)
In 2D, by default, all 8 neighbors are visited to see if a pixel is connected to the background:
Return a 4-connected perimeter using CornerNeighbors->False:
In 3D, by default, all 26 neighbors are visited to see if a pixel is connected to the background:
Use CornerNeighbors->False to return a 6-connected perimeter:
Related Guides
History
Introduced in 2008 (7.0) | Updated in 2010 (8.0) ▪ 2012 (9.0)
Text
Wolfram Research (2008), MorphologicalPerimeter, Wolfram Language function, https://reference.wolfram.com/language/ref/MorphologicalPerimeter.html (updated 2012).
CMS
Wolfram Language. 2008. "MorphologicalPerimeter." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2012. https://reference.wolfram.com/language/ref/MorphologicalPerimeter.html.
APA
Wolfram Language. (2008). MorphologicalPerimeter. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/MorphologicalPerimeter.html
BibTeX
@misc{reference.wolfram_2025_morphologicalperimeter, author="Wolfram Research", title="{MorphologicalPerimeter}", year="2012", howpublished="\url{https://reference.wolfram.com/language/ref/MorphologicalPerimeter.html}", note=[Accessed: 15-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_morphologicalperimeter, organization={Wolfram Research}, title={MorphologicalPerimeter}, year={2012}, url={https://reference.wolfram.com/language/ref/MorphologicalPerimeter.html}, note=[Accessed: 15-August-2025]}