Image Processing Toolbox User's Guide Previous page   Next Page

Morphological Operations

Intensity and Binary Images
conndef
Default connectivity array
imbothat
Perform bottom-hat filtering
imclearborder
Suppress light structures connected to image border
imclose
Close image
imdilate
Dilate image
imerode
Erode image
imextendedmax
Find extended-maxima transform
imextendedmin
Find extended-minima transform
imfill
Fill image regions
imhmax
Calculate H-maxima transform
imhmin
Calculate H-minima transform
imimposemin
Impose minima
imopen
Open image
imreconstruct
Perform morphological reconstruction
imregionalmax
Find regional maxima of image
imregionalmin
Find regional minima of image
imtophat
Perform tophat filtering
watershed
Find image watershed regions

Binary Images
applylut
Perform neighborhood operations using lookup tables
bwarea
Area of objects in binary image
bwareaopen
Binary area open; remove small objects
bwdist
Distance transform
bweuler
Euler number of binary image
bwhitmiss
Binary hit-and-miss operation
bwlabel
Label connected components in 2-D binary image
bwlabeln
Label connected components in N-D binary image
bwmorph
Perform morphological operations on binary image
bwpack
Pack binary image
bwperim
Find perimeter of objects in binary image
bwselect
Select objects in binary image
bwulterode
Ultimate erosion
bwunpack
Unpack a packed binary image
imregionalmin
Regional minima of image
imtophat
Perform tophat filtering
makelut
Construct lookup table for use with applylut

Structuring Element (STREL) Creation and Manipulation
getheight
Get the height of a structuring element
getneighbors
Get structuring element neighbor locations and heights
getnhood
Get structuring element neighborhood
getsequence
Extract sequence of decomposed structuring elements
isflat
Return true for flat structuring element
reflect
Reflect structuring element
strel
Create morphological structuring element
translate
Translate structuring element


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