HOW HAVE IMAGES GOOD CONTRAST

[pipe]

Hi

I need some advice.

I have that do measurements a one line welding, as wide, long and find hole, or one particle analysis  for can discriminate one line welding of another.

 My image of one line welding is attach

I wiewed all example that has imaq vision builder version 6.1and on they, the image are good contrast (bright background and dark particle) for do particle analysis.

How I can get this contrast for my image?

Do you have any example or article that can help me?

Can you get advice for can obtain my objective (distinguish one line welding of other)?

Thank and I hope your answer.

[JesseD]

Hello,

It appears that the image did not get attached.  I have a few general suggestions for Vision applications.  One good source of information is the Vision Concepts Manual that comes with Vision.  Most of the sections from this manual are also available online in tutorials.  

Another good tutorial is "Adaptive Thresholding in IMAQ Vision."  This could be useful for obtaining the binary threshold image.  From there, you could use particle analysis to characterize the weld.  The "Performing a Particle Analysis" tutorial has some additional information on this.

Good luck with your application!

Best Regards,

Jesse D.  |  Applications Engineering  |  National Instruments