Delta VIS100-30G12D, Operating Manual, Page: 28 / 37

Chapter 5 Inspection Tools
VIS100 Vision Sensor Operating Manual
5-2
5.2 Filters
You can use up to five different filter combinations in a single ROI, and there are fifteen different filter types.

Gauss : Smoothes the image using the discrete Gaussian function. The smoothing effect increases
with increasing filter size.

Erosion : Erodes a region of an image or the complete image where its boundary is smoothed and
also reduced.

Dilation : Dilates a region of an image or the complete image where its boundary is smoothed and
also enlarged.

Mean : Smoothes the image by averaging and uses a linear smoothing with the grey value of the
source image.

Median : Computes a median filter with various square or circular masks.

Range :
Highlights and outlines contour edges.

Mirror : Mirrors an image across its horizontal or vertical axis.

Rotate : Rotates an image by a defined angle.

Invert : Inverts the gray scale values of an image.

Opening : Applies a gray value opening to the input image with the structuring element of shape.

Closing : Applies a gray value closing to the input image with the structuring element of shape.

Sharpen : Enhances the contrast in the image by emphasizing high frequency areas of
the image edges and corners, resulting sharper images appearance.

Correction : To compensation non-uniform illumination or non-uniform camera sensitivity.

Binary : Binaries the image with the selected threshold value (selected threshold
value will be replaced by 0 whereas the remaining will be replaced by 255).

Histo-Equalization : Contrast adjustment of the image histogram.