National Instruments IMAQTM Manuel D’Utilisation

© National Instruments Corporation

I-1

IMAQ Vision for Visual Basic User Manual

Index

Numerics

1D barcodes, 5-29

A

acquiring images, 2-4

continuous acquisition, 2-5
one-shot acquisition, 2-4

Acquisition Type combo box, 2-4
ActiveX objects, 1-5
adding shapes to ROIs, 3-5
analyzing images, 2-7, 2-8
Annulus tool, 3-2
Application, 1-6
application development

general steps, 1-6
inspection steps, 1-7

arrays, converting to images, 2-6
attaching calibration information to images,

attenuation

highpass, 2-12
lowpass, 2-12

B

barcodes

reading, 5-29
reading 1D, 5-29
reading data matrix barcodes, 5-30
reading PDF417 barcodes, 5-31

binary images, improving, 4-2
Broken Line tool, 3-2

building

coordinate transformation with edge

coordinate transformation with pattern

building coordinate transformations, 5-7

choosing a method, 5-7

C

calibrating images, 2-2, 6-1
calibration

nonlinear, 6-1
perspective, 6-1
voiding, 6-9

calibration information, 6-5

attaching to images, 2-7, 6-10
saving, 6-10

calibration templates, defining, 6-2
center of energy, obtaining with centroid

centroid method, 3-6
characters

reading, 5-29
training, 5-29

circle, finding points along the edge, 5-10
circles, finding, 5-10
classifying objects, 5-29
color content, evaluating in images, 3-9
color information

learning, 3-9
specifying, 3-10

color location, finding points, 5-25
color matching, 3-10