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Software Module
11.6.2. Settings
Image Area
Current filter settings are displayed in the selected region of interest.
Property
The following settings/results appear.
Process Time [ms] Sensor processing time for the process steps
Module State Error codes to give support in error diagnosis. (see section 18.5)
Input Region Selection of the region to which the filter will be applied
Input Image Selection of the channel for the image input
Filter Type Predefined, performance-optimized filters can be selected di-
rectly. Freely definable filters have kernel sizes of 3×3 and 5×5.
Off
Input image = output image
Sobel
Edge and smoothing filters:
• Homogeneous areas appear black
• Edges appear white
• Edges are highlighted, even if they have relatively
minimal gray-scale transitions
Gauss
“Low-pass filter” (smaller structures are lost, larger
ones are retained):
• The image becomes softer
• Snow is reduced
• Inhomogeneous surfaces become more
homogeneous
• Edges are highlighted, even if they have
relatively minimal gray-scale transitions
Median
The median is a soft-focus filter. The gray-scale
value of a pixels is replaced by the median of all
gray-scale values of the neighboring pixels. This is
accomplished by placing all pixels in the specified
surroundings in ascending order and replacing the
current pixel with the mean value (the median) of the
ascending sequence.
• Smoothing of the image while retaining edge
steepness
• Sharpness is retained because the edges do not
become blurred.
• Small, sporadic noise pixels are eliminated.
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