How to convert FLIR gray Image to a map of temperature in NI VBAI
I worked with an infrared camera FLIR A315 and software VBAI of NEITHER. I need determine the presence and continuity of a hot mastic foam which has been injected into the hollow bulb of a bead attached to 4 adjacent places that flow together inside the bulb of weatherstripping to form a continuous rubber scoured the filler plug.
So far, I was able to trigger image acquisition in VBAI from a FLIR infrared camera monitoring the status bit an Allen-Bradley PLC. Communication with the camera FLIR A315 is via the IMAQdx GigE driver. However, I did not understand how to determine the temperatures of the gray scale images I get from the FLIR camera. I wonder if someone could give me some advice on how to do it.
I have attached a few images below to illustrate what I work with and to what extent I'm away.
- iPhone_Photo.jpg - shows a photograph of the stripping section that the FLIR infrared camera is 'looking '.
- FLIR_IR_Monitor.jpg - a screenshot of a FLIR Infrared Monitor utility that shows the temperatures measured at a number of points and areas (showing that it is possible)
- NI_VBAI.jpg - part of my VBAI 2010 project that shows the image, I have acquired the FLIR A315 IR camera
So, I am part of the path, but so far have not found a way to map the image of gray-scale that VBAI acquires the infrared camera FLIR in a heat map where I can determine the temperatures - and would be grateful for the help on how to do it.
Kind regards
Nick
Hello
Image provided by the FLIR camera are unsigned 16-bit.
According to the temperature scale FLIR selected (10mK or 100mK), you have to divide by a factor of 10 or 100 to get the values of K. Do not select Exit radiometric.
If your object is cold, the population of the histogram of the image will be on the left side of it and if the object is hot, the population of the histogram will be on the right side.
If you want that your values of temperature in degrees Celsius, just add 273.15 Kelvin value.
Then you can add a color palette in VBAI (iron FLIR is available)
Hope this helps
Tags: NI Hardware
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