Rockwell Automation 5370-CVIM2 Module - Manual (Page 319)

5 Chapter Chapter 7
Inspection Tools
7–81
Figure 7.65 Example: Designating S2 Source for Image Tool Using S1 – S2
In this example, Tool 2 is an image tool that is configured to process an AOI
within an image whose source is camera #1 (designated by “ C1 ” in the “ S1 ”
column) and deliver the processed image to a destination image buffer
(designated by “
P1 ” in the “ Dest ” column).
Tool 3 is an image tool that is configured for the S1 – S2 image subtraction
operation. Its primary image source is camera #1 (designated by “ C1 ” in the
“ S1 ” column). Its secondary image source is the destination image buffer
containing the processed image from Tool 2 (designated by “ P1 ” in the “ S2 ”
column). The destination for Tool 3 ’s processed image is a different
destination image buffer (designated by “ P2 ” in the “ Dest ” column).
Tool 4 is a window tool. Its primary (and only) image source is the
destination image buffer (designated by “ P2 ” in the “ S1 ” column) that
contains the results of the image subtraction operation performed by the
preceding image tool,
Tool 3.
When the S1 – S2 subtraction operation is selected for Tool 3 , the
and buttons both become active in the tool edit panel. The
button accesses the “pick and place” function for AOI#1, which
relates to image source S1 , while the button accesses the “pick and
place” function for AOI#2, which relates to image source S2 .
Initially, AOI#1 appears in its default position in the upper–left part of the
screen. The image content within AOI#1 at this point depends on whether
any part of AOI#2 lies outside its source image (which is from the AOI in
Tool 2 , in this example). If not, the contents of AOI#1 will immediately
display a processed image from the S1 – S2 subtraction; if so, the contents
of AOI#1 will remain unchanged. (See the Image Tool Operations: Warning
Messages section, on page 7–84, for a discussion of the automatic
adjustments that the CVIM2 system performs on the AOI’s under some
circumstances, and the related “warning” messages.)
AOI#1 and AOI#2 can be resized and/or positioned at this time by picking
their respective “
P&P ” buttons to access their pick and place functions.