National Instruments IMAQ Vision for Measurement Studio User Manual download pdf (Page 87)

Appendix A Technical Support Resources

IMAQ Vision for LabWindows/CVI User Manual A-2 ni.com

Worldwide Support

National Instruments has offices located around the world to help address

your support needs. You can access our branch office Web sites from the

Worldwide Offices section of

ni.com

. Branch office Web sites provide

up-to-date contact information, support phone numbers, e-mail addresses,

and current events.

If you have searched the technical support resources on our Web site and

still cannot find the answers you need, contact your local office or National

Instruments corporate. Phone numbers for our worldwide offices are listed

at the front of this manual.

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IMAQ Vision 1
User Manual 1
Important Information 3
Conventions 4
Contents 5
Chapter 4 6
Chapter 5 6
Introduction to IMAQ Vision 8
IMAQ Vision Function Tree 9
Table 1-1 10
IMAQ Vision Function Types 10
NIMachineVision.fp 11
Getting Measurement-Ready 14
Calibrate Your Imaging System 15
Create an Image 15
Source and Destination Images 17
AcquireorReadanImage 18
Acquiring an Image 19
Reading a File 19
Display an Image 20
Analyze an Image 21
Improve an Image 22
Convolution Filter 23
Nth Order Filter 24
Grayscale Morphology 24
Complex Image Operations 26
Grayscale and Color 27
Measurements 27
Figure 3-2. ROI Constructor 30
Defining Regions with Masks 32
Measure Grayscale Statistics 33
Measure Color Statistics 33
Comparing Colors 34
Learning Color Information 35
Using the Entire Image 36
Using a Region in the Image 36
Ignoring Learned Colors 39
Blob Analysis 40
Correct Image Distortion 41
Create a Binary Image 41
Improve the Binary Image 42
Make Particle Measurements 43
Chapter 4 Blob Analysis 44
Machine Vision 47
Locate Objects to Inspect 48
Chapter 5 Machine Vision 49
Figure 5-3 51
IMAQ_MATCH_ROTATION_INVARIANT 52
IMAQ_MATCH_SHIFT_INVARIANT 52
IMAQ_FIND_REFERENCE 52
IMAQ_UPDATE_TRANSFORM 52
Set Search Areas 54
Find Measurement Points 55
Symmetry 59
Feature detail 60
Positional information 60
Defining a Search Area 61
Match Mode 63
Minimum Contrast 63
Rotation Angle Ranges 63
Color Information 65
Feature Detail 66
Positional Information 66
Background Information 66
Color Sensitivity 69
Search Strategy 69
Color Score Weight 70
Make Measurements 72
Display Results 74
Calibration 76
CoordinateSystem 77
Chapter 6 Calibration 78
Specifying Scaling Factors 81
Choosing a Region of Interest 81
Choosing a Learning Algorithm 81
Using the Learning Score 82
Learning the Error Map 83
Learning the Correction Table 83
Setting the Scaling Method 83
Calibration Invalidation 83
Simple Calibration 84
Save Calibration Information 85
Technical Support Resources 86
Worldwide Support 87
Glossary 100

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