MIRRORS: A MATLAB® GUI for temperature measurement by multispectral imaging radiometry

Abstract

MultIspectRal imaging RadiOmetRy Software (MIRRORS) is an open source MATLAB based Graphical User Interface (GUI) designed to automatically process images generated from a four colour multispectral imaging radiometry system for the temperature measurement of samples heated in a diamond anvil cell. The GUI can work in either a live mode (during an experiment) or a post-processing mode and performs background subtraction, spatial correlation, and thermal calibration of the data before producing maps of temperature, emissivity, and their associated uncertainties, an image difference map (i.e., the change in the shape of the temperature field), and a variety of other visualisations derived from them. We describe the distribution, system requirements, and required hardware specific code modifications necessary to setup MIRRORS. We also describe the workflow of the software and its underlying methodologies and provide an example output as well as the results of benchmarking against a traditional spectroradiometric system of known accuracy.