Closing
Perform morphological closing on binary or intensity images
Library
Morphological Operations
visionmorphops
Description
The Closing block performs a dilation operation followed by an erosion operation using a predefined neighborhood or structuring element. This block uses flat structuring elements only.
| Port | Input/Output | Supported Data Types | Complex Values Supported |
|---|---|---|---|
I | Vector or matrix of intensity values |
| No |
Nhood | Matrix or vector of ones and zeros that represents the neighborhood values | Boolean | No |
Output | Vector or matrix of intensity values that represents the closed image | Same as I port | No |
The output signal has the same data type as the input to the I port.
Use the Neighborhood or structuring element source parameter to specify
how to enter your neighborhood or structuring element values. If you select
Specify via dialog, the Neighborhood or structuring
element parameter appears in the dialog box. If you select Input
port, the Nhood port appears on the block. Use this port to enter your
neighborhood values as a matrix or vector of 1s and 0s. You can only specify a structuring
element using the dialog box.
Use the Neighborhood or structuring element parameter to define the
region the block moves throughout the image. Specify a neighborhood by entering a matrix or
vector of 1s and 0s. Specify a structuring element with the strel
function from the Image Processing Toolbox™. If the structuring element is decomposable into smaller elements, the block
executes at higher speeds due to the use of a more efficient algorithm.
Parameters
- Neighborhood or structuring element source
Specify how to enter your neighborhood or structuring element values. Select
Specify via dialogto enter the values in the dialog box. SelectInput portto use the Nhood port to specify the neighborhood values. You can only specify a structuring element using the dialog box.- Neighborhood or structuring element
If you are specifying a neighborhood, this parameter must be a matrix or vector of 1s and 0s. If you are specifying a structuring element, use the
strelfunction from the Image Processing Toolbox. This parameter is visible if, for the Neighborhood or structuring element source parameter, you selectSpecify via dialog.
References
[1] Soille, Pierre. Morphological Image Analysis. 2nd ed. New York: Springer, 2003.
See Also
Computer Vision Toolbox™ software | |
Computer Vision Toolbox software | |
Computer Vision Toolbox software | |
Computer Vision Toolbox software | |
Computer Vision Toolbox software | |
Computer Vision Toolbox software | |
Image Processing Toolbox software | |
Image Processing Toolbox software |