MATLAB: How to measure the temperature of each pixel

Question

How can I measure the temperature for each pixel from a thermography image. I'm attaching an example of one of the images I took.

Can anyone help me?

Thanks.

Answer 1

Of course it's better to use the actual image if you have one that has actual temperature data in it. But if you don't, like you have the cheapest FLIR one phone camera, then you can extract out the colorbar and use it to convert to temperature. See attached demo.