Pattern Information, Display Mask

[Mirko333]

Hi,

we use NI Vision 8.2. Exactly we use the CVI imaq library in our own application. The task for which we use is geometric pattern matching. I have create a tool which looks like the Vision Assistent. I can change all the option, learn pattern and match with my source image. Read and Write the picture is not a problem. Creating a image mask and set points to ignore and other points to curve points is also not a problem.

So here my questions:

When i load a patterfile via "imaqReadVisionFile", how can i get the "curveOptions" information, advancedLearnOptions and how i get the pattern mask from the pattern file?


Greetings
Mirko

[nikolair]

Hi Mirko,

the NI Vision library in CVI offers different functions that should be helpful to your question in "Pattern Matching":

imaqLearnGeometricPattern (, IMAQ_NO_OFFSET, NULL, NULL, NULL);
imaqReadMultipleGeometricPatternFile (, NULL);

For more information about the elements of CurveOptions refer to the NI Vision for LabWindows/CVI Function Reference Help in the Vision Development Module Bookshelf. To access the bookshelf, select Start>>All Programs>>National Instruments>>Vision>>Documentation>>Search the NI Vision Bookshelf..

regards,

Nikolai

[CarlosOtiniano]

In this illustrative example, we will create a program in Labview capture an image pattern, after the search to show the location and coordinates, you can check the following article in the following link

https://decibel.ni.com/content/docs/DOC-31880