I need the temperature profile (a quantitative dataset) of the flame under study. Is there any image processing tool a available which I can utilize for my study?
Have a look at https://stackoverflow.com/questions/59478962/how-to-convert-a-grayscale-image-to-heatmap-image-with-python-opencv
Also https://au.mathworks.com/matlabcentral/answers/320467-i-need-to-convert-rgb-image-into-thermal-image-for-temperature-detection-of-human-being-without-usin
An RGB image uses visible light while a thermal image uses infra-red. Since the information contained are different, a simple conversion will not produce the correct results.