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What Color Is It?

Posted March 04, 2008 8:14 AM

Machine-vision-based inspection can incorporate monochrome or color imaging. How do the results differ? More significantly, what colors does the machine see compared with human vision? And what information can color inspection provide? Industry experts explore the state of color machine vision and expectations for future developments and applications. How would you use color vision?

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Guru

Join Date: Jun 2007
Posts: 1035
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#1

Re: What Color Is It?

03/05/2008 10:24 AM

Interesting article, but, unless I missed a step in CR4-based discussion, certain fundamentals have not been addressed, such as: "Why use machine vision in the first place?"

Production-Assembly lines (esp. conveyor - types) lend themselves very well to machine-vision based inspection of many different components. Accurate measurements can be made to within fractions of a mm and color variances (i.e., adequate paint coverage, or handling scars) can be identified in many instances.

The singular greatest advantage of machine-based inspection is that machines are NEVER subject to the syndrome that eventually gets to every human, when performing repetitive, mundane tasks (such as inspecting "widgets" passing-by on a conveyor belt). It is called VIGILANCE DECREMENT...

http://www.csulb.edu/org/college/hfes/vigilance.htm has a very good description of the syndrome.

Best to all ~

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Guru
Hobbies - CNC - New Member Hobbies - DIY Welding - New Member Engineering Fields - Electromechanical Engineering - New Member

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#2
In reply to #1

Re: What Color Is It?

03/05/2008 2:04 PM

ndt-tom,

your comment;

Why use machine vision in the first place?"

They use it for high speed grading of fruits and vegetables, and with the coloring it can be grading farther from ripeness, to non acceptable (due to disease or flaws)

phoenix911

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Anonymous Poster
#3
In reply to #2

Re: What Color Is It?

03/05/2008 3:20 PM

phoenix911 i can't stop laffing your signature "sometimes its wiser to just look stupid, than opening your mouth and removing all doubt" unknown

Mark Twain said that

so you must have known that, and that's what makes putting "unknown" at the end so funny huh!

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Guru
Hobbies - CNC - New Member Hobbies - DIY Welding - New Member Engineering Fields - Electromechanical Engineering - New Member

Join Date: Aug 2007
Posts: 23647
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#4
In reply to #3

Re: What Color Is It?

03/05/2008 4:06 PM

I thought it was mark twain also. but I was corrected a number of times from people on this forum that it was from ben franklin to a passage out of the bible. with slightly different variances.

I happy you were entertained by it.

There is some wisedom to that, I try to follow it ........(to some degree of success)

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