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312 WinView/32 Manual Version 2.4.M
Parameters tab page (Morphological)
The Morphological operations Erode and Dilate are also accomplished by masking the
data. The effect of the Erode process is to reduce the size of a white region, while
Dilation increases it. The number of iterations is set by the user. All the options except
for Block and User Defined perform the operation in a specific direction only. Block
performs the operation in all directions. Two other choices are Open and Close. Open is
simply a number of erodes (specified by Iterations) followed by the same number of
dilates. Close performs the dilates first, then the erodes. Alternatively, you can select
User Defined and specify your own values in the Kernel matrix. See Chapter 10 for
additional information.
Parameters
Mask Type:
Specifies the direction of the operation. Choices include Horizontal,
Vertical, the two diagonals and Block, in which the operation is performed in all
directions. The final choice is User Defined, in which the mask values are set by
the user.
Mask Operation:
Selects the morphological operation to be performed, Open, Dilate,
Open or Close.
Iterations:
Number of times the selected operation is to be performed.
Control Buttons:
Mouse:
Allows you to specify a region to be processed using the mouse. Simply
drag a box in the data region of the active window and then click on
Mouse
.
The
Frame
and
Range
parameters will assume the values of the defined
region. Note that the
Mouse
button is only active when the
Input
tab page is
selected.
Figure 271.
Morphological
Parameters tab
page.