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labview图像处理原理
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IMAQ
TM
IMAQ Vision for LabVIEW
TM
User Manual
IMAQ Vision for LabVIEW User Manual
August 2004 Edition
Part Number 371007A-01
Support
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© National Instruments Corporation v IMAQ Vision for LabVIEW User Manual
Contents
About This Manual
Conventions ...................................................................................................................xi
Related Documentation..................................................................................................xii
IMAQ Vision...................................................................................................xii
NI Vision Assistant..........................................................................................xii
NI Vision Builder for Automated Inspection ..................................................xii
Other Documentation ......................................................................................xiii
Chapter 1
Introduction to IMAQ Vision
About IMAQ Vision ......................................................................................................1-1
IMAQ Vision Control Palette ........................................................................................1-1
IMAQ Vision Function Palettes ....................................................................................1-2
Vision Utilities.................................................................................................1-2
Image Processing.............................................................................................1-4
Machine Vision ...............................................................................................1-5
How to Create IMAQ Vision Applications ...................................................................1-6
Chapter 2
Getting Measurement-Ready Images
Set Up Your Imaging System ........................................................................................2-1
Calibrate Your Imaging System ....................................................................................2-2
Create an Image .............................................................................................................2-2
Input and Output Combinations ......................................................................2-4
Image Analysis..................................................................................2-4
Image Masks .....................................................................................2-4
Image Filling .....................................................................................2-5
Image Processing ..............................................................................2-5
Arithmetic and Logical Operations...................................................2-6
Acquire or Read an Image .............................................................................................2-6
Display an Image ...........................................................................................................2-8
External Window Display ...............................................................................2-8
Image Display Control ....................................................................................2-9
Attach Calibration Information......................................................................................2-12
Analyze an Image ..........................................................................................................2-12
Contents
IMAQ Vision for LabVIEW User Manual vi ni.com
Improve an Image.......................................................................................................... 2-14
Lookup Tables................................................................................................. 2-14
Filters .............................................................................................................. 2-14
Convolution Filter............................................................................. 2-15
Nth Order Filter ................................................................................ 2-15
Grayscale Morphology.................................................................................... 2-15
FFT.................................................................................................................. 2-16
Advanced Operations ....................................................................... 2-18
Chapter 3
Making Grayscale and Color Measurements
Define Regions of Interest............................................................................................. 3-1
Defining Regions Interactively ....................................................................... 3-3
Defining an ROI in the Image Display Control................................ 3-3
Defining an ROI in an External Window ......................................... 3-4
Defining an ROI Using an ROI Constructor .................................... 3-4
Tools Palette Transformation ........................................................... 3-6
Defining Regions Programmatically............................................................... 3-7
Defining Regions with Masks......................................................................... 3-9
Measure Grayscale Statistics......................................................................................... 3-9
Measure Color Statistics................................................................................................ 3-10
Comparing Colors ........................................................................................... 3-12
Learning Color Information ........................................................................... 3-12
Specifying the Color Information to Learn ...................................... 3-13
Choosing a Color Representation Sensitivity ................................... 3-15
Ignoring Learned Colors................................................................... 3-16
Chapter 4
Performing Particle Analysis
Create a Binary Image ................................................................................................... 4-1
Improve the Binary Image............................................................................................. 4-2
Removing Unwanted Particles........................................................................ 4-3
Separating Touching Particles ........................................................................ 4-4
Improving Particle Shapes .............................................................................. 4-4
Make Particle Measurements ........................................................................................ 4-4
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资源评论
- renls132012-05-23太过偏重原理,如有实例就完美了
- qq_286220392015-08-17对初学者来说难度大了一点,缺少实例演示
ciscowensj
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