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National Instruments IMAQ manual available for free PDF download: User Manual
National Instruments IMAQ User Manual (121 pages)
Vision for Visual Basic
Brand:
National Instruments
| Category:
Computer Hardware
| Size: 2.11 MB
Table of Contents
User Manual
1
Important Information
3
Table of Contents
4
About this Manual
8
Conventions
8
Related Documentation
9
Ni Vision Builder for Automated Inspection
9
Chapter 1 Introduction to IMAQ Vision
11
About IMAQ Vision
11
Documentation and Examples
11
IMAQ Vision for Visual Basic Organization
12
Cwimaq.ocx
13
CWIMAQ Control
13
Cwimaqvision Control
13
Cwimaqviewer Control
13
Niocr.ocx
14
NIOCR Control
14
Cwmv.ocx
14
Cwmachinevision Control
14
Activex Objects
15
Creating IMAQ Vision Applications
15
Chapter 2 Getting Measurement-Ready Images
18
Set up Your Imaging System
18
Calibrate Your Imaging System
19
Create an Image
19
Acquire or Read an Image
21
Acquiring an Image
21
One-Shot Acquisition
21
Continuous Acquisition
22
Reading a File
23
Converting an Array to an Image
23
Display an Image
23
Attach Calibration Information
24
Analyze an Image
24
Improve an Image
26
Lookup Tables
26
Filters
26
Convolution Filter
27
Nth Order Filter
27
Grayscale Morphology
27
Fft
28
Complex Image Operations
29
Chapter 3 Making Grayscale and Color Measurements
30
Define Regions of Interest
30
Defining Regions Interactively
30
Defining Regions Programmatically
34
Defining Regions with Masks
35
Measure Grayscale Statistics
35
Measure Color Statistics
36
Comparing Colors
38
Learning Color Information
38
Specifying the Color Information to Learn
39
Using the Entire Image
39
Choosing a Color Representation Sensitivity
41
Ignoring Learned Colors
42
Chapter 4 Performing Particle Analysis
43
Create a Binary Image
43
Improve the Binary Image
44
Removing Unwanted Particles
45
Separating Touching Particles
45
Improving Particle Shapes
46
Make Particle Measurements
46
Chapter 5 Performing Machine Vision Tasks
53
Locate Objects to Inspect
54
Using Edge Detection to Build a Coordinate Transformation
55
Using Pattern Matching to Build a Coordinate Transformation
57
Choosing a Method to Build the Coordinate Transformation
59
Set Search Areas
60
Defining Regions Interactively
60
Defining Regions Programmatically
61
Find Measurement Points
61
Finding Features Using Edge Detection
61
Finding Lines or Circles
62
Finding Edge Points Along One Search Contour
63
Finding Edge Points Along Multiple Search Contours
64
Finding Points Using Pattern Matching
64
Defining and Creating Effective Template Images
65
Training the Pattern Matching Algorithm
67
Defining a Search Area
68
Setting Matching Parameters and Tolerances
69
Testing the Search Algorithm on Test Images
70
Using a Ranking Method to Verify Results
71
Finding Points Using Color Pattern Matching
71
Defining and Creating Effective Color Template Images
72
Training the Color Pattern Matching Algorithm
73
Defining a Search Area
74
Setting Matching Parameters and Tolerances
75
Testing the Search Algorithm on Test Images
77
Finding Points Using Color Location
77
Convert Pixel Coordinates to Real-World Coordinates
78
Make Measurements
78
Distance Measurements
78
Analytic Geometry Measurements
79
Instrument Reader Measurements
80
Identify Parts under Inspection
80
Classifying Samples
80
Reading Characters
81
Reading Barcodes
81
Read 1D Barcodes
81
Read Data Matrix Barcode
82
Read PDF417 Barcode
83
Display Results
83
Chapter 6 Calibrating Images
86
Perspective and Nonlinear Distortion Calibration
86
Defining a Calibration Template
87
Defining a Reference Coordinate System
88
Learning Calibration Information
90
Specifying Scaling Factors
91
Choosing a Region of Interest
91
Choosing a Learning Algorithm
91
Using the Learning Score
92
Learning the Error Map
93
Learning the Correction Table
93
Setting the Scaling Mode
93
Calibration Invalidation
94
Simple Calibration
94
Save Calibration Information
95
Attach Calibration Information
95
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