Object Classification in Image Processing

[nani689]

Hello,

Could please help me in Classification of objecets? My project to classify the objects in  ROI. For example in the below fig ROI contains 1 triangle, 2 Squares and 1 Circle. In the output it has to show TriangleClass Sample 1, SquareClass Sample 2 and CircleClass Sample 1.

Please help me.

Thanks in advance 

[TiTou]

If you have Vision Development Module you could have a go with the geometrical pattern matching, I haven't used it myself, but there is an example that ships with LabVIEW (launch the example finder Help >> Find Example... and then search for "geometric", there should be one match called : Geometric Matching Example.vi)

Hope this helps

[nani689]

Thanks for the reply TiTou. I saw the example what you suggested but it is not related to my question.My project is classifying the objects in the given image with respect to shape, color and size etc.. 

[nani689]

Please help me in doing Classification

[MangeshD]

Hey

For detecting shape you can use shape detection VI.

Please provide what you exactly want to do so that someone can help you

[nani689]

My project is Pattern Recogonisation (Image Processing)

For this, I did Image Acquisition , Segmentation and Feature Extraction.. Now I have to do the final step clasification.

My original Image is 

I need output asafter classification(with 3 diff classes ). I don know how to train the Image to get output as above.

[Phil_]

Search the examples for 'Classification'. There is one called 'Classification Example.vi' which looks just like what you are after.

p.s. The Vison examples always seem to use lots of stacked sequence structures. I often find them easier to read if you refactor the code to get rid of the stacked sequence structures.

[nani689]

Thanks fot the reply Phil_. I saw that example.Ya it was related to my question. I am very new to Labview so not able to understand that code. Am attachting my code. If possible,please, can anyone add the classification part to this code.

[Phil_]

Sorry, I am no more familliar with the classification VIs than you (neither am I in the business of doing peoples homework for them  .)

I would persevere with that example, use the help files to figure out how it all works and then try implementing it yourself.

(use the context help tool, then click 'more details' to dig deeper into the subject). 

Have a bit of a google, see if you can find a manual for it online. (I had a quick look, but didnt see anything)

Good Luck. Stick with it.

[Phil_]

A good place to start looking maybe: http://zone.ni.com/reference/en-XX/help/370281P-01/nivisionlvbasics/identify_parts_under_inspection/

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Typical applications involving color classification include the following:

• Sorting—Sorts objects of varied shapes. For example, sorting different mechanical parts on a conveyor belt into different bins.
• Inspection—Inspects objects by assigning each object an identification score and then rejecting objects that do not closely match members of the training set.

Before you classify objects, you must create a classifier file with samples of the objects using the NI Particle Classification Training Interface. Go to Start»All Programs»National Instruments»Particle Classification Training to launch the NI Particle Classification Training Interface. Refer to the NI Particle Classification Training Interface Help for more information about the NI Particle Classification Training Interface.