thermal image processing to get the temprature on each pixel

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Neha Thakkar 2022-6-22

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https://ww2.mathworks.cn/matlabcentral/answers/1745480-thermal-image-processing-to-get-the-temprature-on-each-pixel

移动：DGM 2023-3-25

i installed a darvi camera and taken the thermal images from this camera. i get the image in jeeg format. i want to calculate the tempratue of eache pixel of that image, i want ta calculate emistivity, region of interset. is it possible in matlab

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yanqi liu 2022-6-22

yes，sir，may be use some image segment method，if possible，may be upload some image to analysis

Neha Thakkar 2022-6-22

IR_14107.jpg

i atteched the image. actually m new in matlab coding. i want to extract the bull body temprature on each roi and environment temprature from this images.

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DGM 2022-6-22

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https://ww2.mathworks.cn/matlabcentral/answers/1745480-thermal-image-processing-to-get-the-temprature-on-each-pixel#answer_990815

编辑：DGM 2023-3-25

Image Analyst has a number of examples

This is the current version of the demo he posted below:

https://www.mathworks.com/matlabcentral/answers/1923970-background-color-correction-of-a-rgb-picture#answer_1193820

... and these are some of the earlier answers

https://www.mathworks.com/matlabcentral/answers/320467-i-need-to-convert-rgb-image-into-thermal-image-for-temperature-detection-of-human-being-without-usin

https://www.mathworks.com/matlabcentral/answers/384579-thermal-camera-image-processing

https://www.mathworks.com/matlabcentral/answers/1741190-thermography-camera-image-color-scale-cropping

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Image Analyst 2022-6-22

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https://ww2.mathworks.cn/matlabcentral/answers/1745480-thermal-image-processing-to-get-the-temprature-on-each-pixel#answer_991095

See attached demo. I had been using hard coded coordinates for the colorbar since, once known, they won't change for that particular camera. However so many people seem to be unable to figure out what coordinates the image and color bar are at that I decided to have the user draw a box around each. I also adapted it to handle either vertical or horizontal colorbars.

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Neha Thakkar 2022-6-27

移动：DGM 2023-3-25

thermalimage.png

yes, but whin i m moving around the mouse over it, its not showing anything like temprature i have to extract the informations from this image or you can guide me about the instering image in gui of matlab

Image Analyst 2022-6-27

移动：DGM 2023-3-25

That won't because it's not using my program. It looks like you're just using some interactive MATLAB function to read in an RGB image. You need to do it from my program. You can either watch the GUI as you mouse around or specify a list of (row, column) coordinates to thermalImage array in the code.

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