Most
machine vision software comes with a host of image processing tools.
If you look through the menus you’ll see all kinds of filter and
morphological operators.
Now
usually I tell people if they need to use these tools their image
isn’t very good. I’d rather see time and money spent on creating
a better image than on trying to clean up a crappy one. But that
said, sometimes it does help to do some image processing.
Morphology
isn’t generally understood by those who actually use machine
vision, (as opposed to grad students who do image processing every
day.) If that’s you, take a look at Ben Dawson’s article “Image
Morphology”
published in the Vision & Sensors supplement to Quality Magazine,
July 8th,
2013.
Ben
does a very thorough job of explaining the principles of morphology
and why you might want to use it. He also provides some references
that I think are well worth following up, (if you have time to read
textbooks, that is.)
What
Ben’s a little light on though are the two weaknesses. Morphology
can be computationally intensive, meaning it’s slow, and it changes
the shape of the objects in the image. (The clue should be in the
“morpho” term.) But if you can live with that it can be a very
helpful tool.
Once
again, click, read and learn.
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