Adept AdeptSight User Guide - Manual (Page 451)

the number of pixels over which a typical contrast is spread.
A larger kernel may be used for blurrier images, for example, in the case where the blurriness
is larger than the default kernel value. This is illustrated in the following figure, where the con-
trast is about 6-8 pixels wide. Note the difference in values obtained with different kernel
sizes. With a 7x7 kernel, all the candidate points are used as measurement points. Larger ker-
nels subsequently have almost no impact on the Sharpness result.
Effect of Kernel Operator on the Sharpness Result
A smaller kernel size, 2 or 3, for example, may be helpful for images with fine details or for
images constituted of fine, high-frequency textures.
Region of Interest (ROI)
The region of interest is the area in which the tool carries out its process. Most tool position
parameters can be set through the region of interest section of the tool interface. The fol-
lowing parameters define the tool region of interest.
Offset
Offset is the center of the ROI, defined by:
Configuring Image Sharpness Properties - Advanced
AdeptSight User's Guide, Version 3.2.x, Updated: 8/23/2012
Page 451