Hardware manual

Impact Reference Guide Image Stitching with Points
3-59 Datalogic Automation Inc.
Image Stitching with Points
In the Image Geometry Drawer
The Image Stitching with Points tool provides the ability to combine (stitch) several smaller images into one
large image using points in the images as reference points for the overlap. For example, you can take several
images of sections of a large connector, then stitch them together to produce and inspect the whole connector
image. (Also see “Image Stitching and Overlapping ROIs” on page 3-59.)
Image Stitching and Overlapping RO
Image Stitching and Overlapping ROIs
To stitch more than two images together, link the output from one stitching tool to the input of another.
Stitched images work fastest and most accurately if each ROI is contained within one of the original camera
snaps (i.e. they do not completely straddle an overlap area). ROIs that are larger than the overlap areas,
including full images, work more slowly and do not have sub-pixel accuracy. If each ROI is kept within one
of the camera snaps, then all processing is as fast and accurate as non-stitched images. This includes multi-
ple small ROIs.
The stitched image may sometimes give odd-looking, but correct, results in the overlap region. For example,
when the stitched image is displayed, the overlap area contains pixels from image one. If an ROI is on image
Output Name What it is
Output Image The resulting stitched image (viewed on the Output Image tab). The out-
put image must be less than 32k pixels high or wide with a practical limit
of 16 Mpixels total. See “Special Note for Stitched Images with Distor-
tion” on page 3-60.
Input Name What it is
Image 1 The first image stitch
Overlapping Points
in Image 1
The list of points in image 1 used to indicate the overlap between image
1 and image 2
Tool Origin for
Image 1 Points
The origin of the overlap reference points in image 1.
Image 2 The second image stitch
Overlapping Points
in Image 2
The list of points in image 2 to be used to indicate the overlap between
image 1 and image 2
Tool Origin for
Image 2 Points
The origin of the overlap reference points in image 2.
Output Name What it is
Output Image The image resulting from the stitching operation (viewed on the Output
Image tab). The output image must be less than 32k pixels high or wide
with a practical limit of 16 Mpixels total. See “Special Note for Stitched
Images with Distortion” on page 3-60.