Image Processing Toolbox Release Notes | ![]() ![]() |
Morphology
Version 3.0 adds a broad suite of new mathematical morphology tools open up broad new classes of applications in segmentation and image enhancement.
The existing dilation and erosion operators have been extended to work with grayscale images. New functions range from additional basic operators (opening, closing, tophat) to advanced tools useful for segmentation (distance transforms, reconstruction-based operators, and the watershed transform). The functions use advanced techniques for high performance, including automatic-structuring element decomposition, 32-bit binary image packing, and queue-based algorithms.
Function |
Description |
bwareaopen |
Binary area open (remove small objects) |
bwdist |
|
bwhitmiss |
Binary hit-miss operation |
bwlabeln |
Label-connected components in N-D binary image |
bwpack |
Pack binary image |
bwulterode |
Ultimate erosion |
bwunpack |
Unpack binary image |
conndef |
Default connectivity array |
imbothat |
Perform bottom-hat filtering |
imclearborder |
Suppress light structures connected to image border |
imclose |
Close image |
imdilate |
|
imerode |
Erode image |
imextendedmax |
Extended-maxima transform |
imextendedmin |
Extended-minima transform |
imfill |
Fill image regions and holes |
imhmax |
H-maxima transform |
imhmin |
H-minima transform |
imimposemin |
Impose minima |
imopen |
Open image |
imreconstruct |
Morphological reconstruction |
imregionalmax |
Regional maxima |
imregionalmin |
Regional minima |
imtophat |
Tophat filtering |
strel |
Create morphological structuring element |
strel/getheight |
Get structuring element height |
strel/getnhood |
Get structuring element neighborhood |
strel/getsequence |
Get sequence of decomposed structuring elements |
strel/isflat |
Return true for flat structuring element |
strel/reflect |
Reflect structuring element about its center |
strel/translate |
Translate structuring element |
watershed |
Find image watershed regions |
![]() | Image Processing Toolbox 3.1 Release Notes | Spatial Transformations | ![]() |