National Instruments IMAQTM manuals

National instruments IMAQTM User Manual (121 pages)

Brand: National-instruments | Category: Cameras | Size: 2.01 MB |

English

Table of contents

IMAQ Vision for Visual Basic

1

User Manual

1

Important Information

3

Contents

4

About This Manual

8

Related Documentation

9

Other Documentation

10

Introduction to IMAQ Vision

11

CWIMAQ Control

13

CWIMAQVision Control

13

CWIMAQViewer Control

13

NIOCR control

14

CWMachineVision control

14

ActiveX Objects

15

Getting Measurement-Ready

18

Calibrate Your Imaging System

19

Create an Image

19

Acquire or Read an Image

21

Continuous Acquisition

22

Display an Image

23

Analyze an Image

24

Improve an Image

26

Convolution Filter

27

Nth Order Filter

27

Grayscale Morphology

27

Complex Image Operations

29

Making Grayscale and Color

30

Measurements

30

2 3 4 5 7

33

Measure Grayscale Statistics

35

Measure Color Statistics

36

Comparing Colors

38

Learning Color Information

38

Using the Entire Image

39

Using a Region in the Image

40

Ignoring Learned Colors

42

Performing Particle Analysis

43

Improve the Binary Image

44

Removing Unwanted Particles

45

Separating Touching Particles

45

Make Particle Measurements

46

Performing Machine Vision

53

Locate Objects to Inspect

54

MatchMode property of the

58

Set Search Areas

60

Find Measurement Points

61

Finding Lines or Circles

62

Symmetry

65

Feature Detail

66

Positional Information

66

Background Information

67

Defining a Search Area

68

Match Mode

69

Minimum Contrast

70

Rotation Angle Ranges

70

Color Information

72

Color Sensitivity

75

Search Strategy

75

Color Score Weight

76

Make Measurements

78

Classifying Samples

80

Reading Characters

81

Reading Barcodes

81

Read 1D Barcodes

81

Read Data Matrix Barcode

82

Display Results

83

Calibrating Images

86

Chapter 6 Calibrating Images

87

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

Simple Calibration

94

Save Calibration Information

95

Technical Support and

97

Professional Services

97

Glossary

100

Numerics

115

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