执行上流社会的过滤on intensity or binary images
Morphological Operations
visionmorphops
The Top-hat block performs top-hat filtering on an intensity or binary image using a predefined neighborhood or structuring element. Top-hat filtering is the equivalent of subtracting the result of performing a morphological opening operation on the input image from the input image itself. 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 1s and 0s that represents the neighborhood values |
Boolean |
No |
Output |
Scalar, vector, or matrix that represents the filtered image |
Same as I port |
No |
If your input image is a binary image, for theInput image typeparameter, selectBinary
. If your input image is an intensity image, selectIntensity
.
Use theNeighborhood or structuring element sourceparameter to specify how to enter your neighborhood or structuring element values. If you selectSpecify via dialog
,Neighborhood or structuring elementparameter appears in the dialog box. If you selectInput port
,Nhood port appears on the block. Use this port to enter your neighborhood values as a matrix or vector of 1s and 0s. Choose your structuring element so that it matches the shapes you want to remove from your image. You can only specify a it using the dialog box.
Use theNeighborhood or structuring elementparameter 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 thestrel
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.
If your input image is a binary image, selectBinary
. If your input image is an intensity image, selectIntensity
.
Specify how to enter your neighborhood or structuring element values. SelectSpecify via dialog
to enter the values in the dialog box. SelectInput port
to use the Nhood port to specify the neighborhood values. You can only specify a structuring element using the dialog box.
如果你指定一个社区,这parameter must be a matrix or vector of 1s and 0s. If you are specifying a structuring element, use thestrel
function from the Image Processing Toolbox. This parameter is visible if, for theNeighborhood or structuring element sourceparameter, you selectSpecify via dialog
.
Computer Vision Toolbox™ software |
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Computer Vision Toolbox software |
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Computer Vision Toolbox software |
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Computer Vision Toolbox software |
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Computer Vision Toolbox software |
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Computer Vision Toolbox software |
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Image Processing Toolbox software |
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Image Processing Toolbox software |