Rockwell Automation 5370-CVIM2 Module - Manual (Page 321)

5 Chapter Chapter 7
Inspection Tools
7–83
the subtraction is assigned to one of the image buffers ( P1 , P2 , or P3 ) in the
destination (“ Dest ”) column of the toolset edit panel.
S1 – T
The S1 – T operation subtracts a stored template (T) from an AOI within the
S1 image.
S1 represents the image source that is supplied to the current image tool and
designated in the “ S1 ” column. The image source can be either a camera
( C1 , C2 , and so on) or an image buffer ( P1 , P2 , or P3 ) containing an image
processed by another image tool or a rotation finder tool. (Any source that
may appear in the “
S2 ” column will have no effect on the S1 – T
subtraction operation.)
When the S1 – T subtraction operation is selected, the Template field
becomes active and displays “ No Template ” initially.
When the Template field is picked, the Image Manager panel appears.
This panel must be used to select an appropriate template image from the
current image, or from another image, whichever is appropriate for the
inspection application. For detail information about the
Image Manager
panel, refer to Chapter 4, Inspection Configuration, under the Image
Manager Panel heading on page 4–40.
When the appropriate template image is selected, its name appears in the
Template field. At the same time, the template image contents are
automatically subtracted from the contents of the AOI #1 window, and the
resulting image appears in the window (assuming that a destination buffer,
such as
P1 , has been selected in the toolset edit panel). Also at the same
time, the AOI #1 window is forced to adopt the size of the template image.
The AOI #1 window can then be positioned over the appropriate part of the
image, using the
button to select its pick and place function. Note,
however, that since the AOI#1 window always adopts the size of the
template image, only its position can be altered once the template image has
been selected.
Image Addition: S1 + S2, S1 + S1’, S1 + T
Image addition operations ( S1 + S2 , S1 + S1’ , and S1 + T ) can be used to
emphasize features that are common to two images, or add different features
on each image in order to create a composite image that contains all desired
features. The abbreviations
S1 , S2 , S1’ , and T represent the specific image
sources to be used in the image addition operation.