Rockwell Automation 5370-CVIM2 Module - Manual (Page 316)

Chapter 7
Inspection Tools
7–78
Table 7.5 correlates the LUT with the signed/unsigned state of the input
image from a convolution kernel, and indicates the characteristics of the
resulting output image.
Table 7.5 Relation of LUT to Input and Output Images
Output Image
Input Image from
Kernel ➀
LUT
Signed or
Unsigned Gray Scale or
Binary
Unsigned Identity Unsigned Gray scale
Signed Sign Unsigned Gray scale
Signed Absolute Unsigned Gray scale
Unsigned Inversion Unsigned Gray scale
Unsigned Clip Unsigned Gray scale
Signed S.Clip Signed Gray scale
Unsigned Threshold NA Binary
Signed S.Threshold NA Binary
➀ All input images have signed or unsigned gray scale values.
NOTE: The LUT assumes that the input image will be signed or unsigned
as indicated in the table. (For example, the
Sign and Absolute LUTs both
“expect” a signed image from, say a Sobel X or Y Edge kernel; whereas,
the Threshold LUT expects an unsigned image.)