Hardware manual

Binary Image Filter Impact Reference Guide
Datalogic Automation Inc. 3-42
The Average Filter tool can smooth the average grey level value of the pixels in an image and provide that
processed image as an output. The smoothing is done within a defined filter area of pixels which is moved
progressively throughout the ROI. Of the three filtering tools (Average, Gaussian and Median), this is the
fastest because it weights all pixels within the filter area equally. It is not as precise as the other two, how-
ever.
Binary Image Filter
In the Image Filtering Drawer
The Binary Image Filter tool creates an output image by applying the standard thresholding methods used in
the Contrast and Blob tools. In the output image, In Range pixels are assigned one value, usually 100, and
Out of Range pixels are assigned another value, usually 0. This tool is useful if you want to threshold the
image before applying another filter, like morphology.
Input Name What it is
Input Image Linked Image
Tool Origin The tool’s origin relative to the entire image space
Shape List The desired region of the image to search. If no shape is defined, the
entire image is processed.
FilterWidth The width of the area (in pixels) where the smoothing takes place
FilterHeight The height of the area (in pixels) where the smoothing takes place
Output Name What it is
Output Image Filtered Image (may be viewed on the Output Image tab).
Input Name What it is
Input Image Linked Image
Tool Origin The tool’s origin relative to the entire image space
Shape List The desired region of the image to search. If no shape is defined, the
entire image is processed.
Grey Level Thresh-
old Type
See “Grey Level Threshold Types” on page 3-68
Fixed Threshold
Range
The fixed grey level threshold range used when a Fixed Threshold
Range Threshold Type is chosen. The parameters are start and end.
In Range Output
Pixel Value
If a pixel in the Input Image has a grey level that is within the Threshold
Range, this grey level is assigned to it (defaults to 100).
Out of Range Out-
put Pixel Value
If a pixel in the Input Image has a grey level that is outside the Threshold
Range, this grey level is assigned to it (defaults to 0).
Output Name What it is
Output Image Input Image with the thresholding applied (click the Output Image tab)