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276 WinView/32 Manual Version 2.4.M
Filter Matrix tab page
The Custom-Filter Filter-Matrix tab page allows you to set the filter matrix parameter
values. The filter is applied to the data-set specified via the Custom Filter Input tab page
(page 286). The processed data is saved in the file specified by the Custom Filter Output
tab page (page 307).
Filtering is accomplished by mask operations defined by parameters entered in the
matrix. These functions can enhance edges, sharpen or smooth features, or erode or
dilate an image. How these images are processed is briefly described below.
A mask is an n n matrix (n is 5, 7, 9 or 11) that is placed over every n n subsection of
the image. Each parameter in the mask is multiplied by the corresponding value of the
image. The results are summed and placed in the central position in the output file. Users
can specify the Filter Size (5×5, 7×7, 9×9 or 11×11). The Filter Sum is displayed in the
adjacent box. The
Load Defaults
button sets the matrix parameters to their factory-
default values.
Control Buttons:
OK:
Click on
OK
to close the dialog.
Cancel:
Click on
Cancel
to exit the dialog.
Apply:
Applies the parameters.
Help:
Click on this button to open the online help for this topic.
Figure 240.
Custom Filter
Filter-Matrix
tab page.