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Found 3 results

  1. Hi, i am stuck here with a new topic. My task is to create a bubble detection of a thin fluid layer. The fluid layer will continously be monitored and once a bubble of a certain size occurs, labview should notice. The basic idea so far is to aquire an image without bubbles and compare this to an image with bubbles. My question: Is there an easy way to solve this, maybe via detecting circle-shape objects, or does it make sense to change the image to an array. I don't have NI Vision Acquisition Software. Thank you so much Tobi
  2. LabVIEW 2013 SQL Server 2012 I would like to read an image path from a SQL database and display the image on the front panel in LabVIEW. The database side works ok but when I run the VI i get an error saying Error 7 file not found. I have checked the directory and the path is correct. I have attached a screenshot of the VI and error.
  3. I've got an application that is processing some fairly large images. They are typically 4800x1280 pixels, 32 bit images. As part of the processing, I resample the image to adjust the aspect ratio. The IMAQ Resample (bi-linear option) function is fast at this, typically around 50-60 ms on my development computer. Unfortunately, this application is going to be distributed to multiple customer sites, and the IMAQ Resample is part of the Vision Development Module, which requires a run-time license for each client computer. That's not acceptable to our customer, especially since resampling is the only Vision Development function I use, the rest are custom fuctions. To get around this I wrote my own solution in G. It uses the Resample Waveform.vi function to do a row-by-row, then colum-by-column resample. It works, but it's fairly slow, around 3-4 seconds (sometimes up to 10s, depending on what mood my computer is in). Not bad, but I'd like to do better. Admittedly I haven't tried to optimize it yet, it's not a high priority. So before I dive into this, has anybody got some code or link to an efficent algorithm they would be willing to share that can do this?
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