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recurring mask error in Vision functions

I keep running into a recurring bug in Vision functions. If you use an image as its own mask, some Vision functions fail to work properly (they ignore the mask).

Here is an example that shows the problem in three vision functions- IMAQ Histogram, IMAQ Convolute, and IMAQ Quantify.

 

 

 

-root

 

Message Edited by Root Canal on 05-01-2009 05:38 PM

global variables make robots angry


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Here's the test image.

global variables make robots angry


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Hi Root,

 

Please only post your questions in one forum.  This issue has been resolved in your post here.

Stephen Meserve
National Instruments
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Shortly after mistakenly posting the question to the hardware forum, I sent a message to the moderator and asked that the post be removed as it was a duplicate post. I then posted the question to the Labview Software forums, as it is a software issue, not hardware. I do not know why the moderator has chosen not to delete the duplicate post.
 
The issue has not been resolved. A support engineer merely promised to document the bug in one VI. He did not acknowledge that this bug is present in more than one VI, or that it was a bug instead of a documentation issue.

I assumed that the support engineer misread or misunderstood my post beacuse it is obvious that no programmer would want a VI to behave in this fashion. If someone wants the VI to analyze the whole image, they simply leave the mask input unwired, just like the Vision documentation tells them to.

Multiple VIs have this issue and it is quite evidently a bug. Please delete any duplicate posts and post an official response regarding the presence of the mask bugs.

Thank you,

-root

global variables make robots angry


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