Machine
Vision And Examples
This palette contains example vis to show how to use the
IVision vis and demonstrates some features in IVision LabVIEW toolkit.
Note: An vi icon with yellow background means they work on
color images. With gray background means they only work on single channel
image. With half yellow and half gray background means they work on both color
and single channel image. Others vi icon background are for either examples or
high level vis. For controls descriptions, you need to go to the vi in LabVIEW,
use help (ctrl+H) and move mouse over the controls to see them.
IVision_Blob Analysis.vi
This example shows how to find the bright objects in a color image and get
the attributes of the objects like area, perimeter, mass center, axis length,
orientation and eccentricity. Also demonstrate how to embed image windows to
LabVIEW window.
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IVision_Match Color Example.vi
This example shows how to learn a color and use this learned color to find a
match. It also shows how to embed an image window without title bar in LV
window, how to do interactive ROI selection on an image window, how to print
text on image window.
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IVision_PyramidSegmentationExample.vi
This example demostrates the color segmentation using pyramid method. Also shows
how to create a trackbar in an image window, embed image window as child of LV
window.
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IVision_FindConnectedCompByPrmd.vi
Find attributes of connected components by using pyramid segmentation
method.
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IVision_FindLines.vi
This vi finds lines in a single channel 8U image(gray image). It does not do
a good job all the time because of the OpenCV. But you can try. Another way to
find a line is to use the blob analysis to find the eccentricity of an object.
A perfect line has a value of 1.
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IVision_MatchPattern1.vi
This example shows one way to find a template in an image.
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IVision_Find Round Objects Example.vi
This example shows how to decide if an object is round or not. Also shows
how to do an interactive ROI selection, embed an image window in LV window,
print text on image window...
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IVision_Interactive Select Example.vi
This example shows how to select different window drawing shape(line,
rectangle and circle) and drawing color to do interactive drawing on an image
window, how to track the mouse position on an image window. Also demonstrate
how to embed an titlebarless image window in LV window.
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IVision_Interactive Line Profile.vi
This example shows how to select a line on an image window and calculate the
line profile and display in a graph. Also demonstrates how to embed image
window to LV window, how to track a mouse position on an image window...
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IVision_Histogram.vi
Calculates histogram of a gray image.
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IVision_Image Processing Example1.vi
This demo shows how to open an image from file and do processing and
analysis on the image.
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IVision_CameraDemo1.vi
This demo shows how to play video from camera, control the camera and video
settings. snap an image and save it to file, live avi file recording, and do
calibration for the lens. Also list all the cameras with device descriptions.
See file "CameraCalibrationTool.html" for more details on how to use
the calibration property page to do calibration.
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IVision_CameraDemo2.vi
The same example as IVision_CameraDemo1.vi. Just for your convenience in
case you have two cameras, you can run both demos at the same time by selecting
the different camera index.
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IVision_Play AVI File_VFW.vi
This demo shows how to open an avi file and play it.
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IVision_Snap From AVI File.vi
This vi shows how to snap an image from the running avi video.
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IVision_Learn Color.vi
This vi learn the color from a part of an image.
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IVision_Match Color.vi
Match color using the learned colors from IVision_Learn Color.vi.
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IVision_MatchTemplate_Gray.vi
This vi slides through the search image, compares patches against template
image using the specified method and stores the comparison results to result
image. User can use IVision_MinMaxLoc.vi to find the minimum and maximum location
of the comparision result to find out where the matches are found.
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IVision_FloodFill.vi
Fill a connected component with given color.
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