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© National Instruments Corporation I-7 IMAQ Vision for LabWindows/CVI User Manual
pattern matching, 5-13 to 5-18
measurement-ready images, acquiring,
2-1 to 2-13
acquiring or reading images, 2-5 to 2-7
analyzingimages,2-8to2-9
attaching calibration information, 2-8
calibrating imaging system, 2-2
creatingimages,2-2to2-5
displaying images, 2-7
improvingimages,2-9to2-13
complex operations, 2-13
FFT (Fast Fourier Transform),
2-11 to 2-13
filters,2-10to2-11
grayscale morphology, 2-11
lookup tables, 2-9 to 2-10
setting up imaging system, 2-1 to 2-2
N
NI Developer Zone, A-1
Nth order filters, 2-11
NULL, passing for image mask, 2-5
O
Oval tool (table), 3-2
P
Pan tool (table), 3-3
particle measurements, 4-4 to 4-7
pattern matching. See also color pattern
matching.
building coordinate transform, 5-5 to 5-6
finding measurement points, 5-13 to 5-18
defining and creating template
images, 5-13 to 5-15
defining search area, 5-15 to 5-16
general steps, 5-13
setting matching parameters and
tolerances, 5-16 to 5-17
testing search algorithm on test
images, 5-18
training the algorithm, 5-15
verifying results with ranking
method, 5-18
perspective errors, calibrating. See calibration.
pixel coordinates, converting to real-world
coordinates, 4-7, 5-26
Point tool (table), 3-2
points, finding. See measurement points,
finding.
Polygon tool (table), 3-2
R
ranking method for verifying pattern
matching, 5-18
readingimages,2-6to2-7
Rectangle tool (table), 3-2
reference coordinate system, defining for
calibration, 6-2 to 6-5
regions of interest, defining, 3-1 to 3-7
for calibration, 6-6
interactively, 3-1 to 3-6
displaying tools palette in separate
window, 3-5
for machine vision inspection, 5-8
ROI constructor window, 3-3 to 3-4
tools palette functions (table),
3-2to3-3
tools palette tools and information
(figure), 3-5
programmatically, 3-6
for machine vision inspection, 5-9
using masks, 3-6 to 3-7
ROI. See regions of interest, defining.
Rotated Rectangle tool (table), 3-2