Spectrum image analysis tool - A flexible MATLAB solution to analyze EEL and CL spectrum images

Area of Science:

• Materials Science
• Spectroscopy
• Data Analysis

Background:

• Spectrum imaging techniques acquire both structural and spectroscopic data simultaneously.
• Extracting meaningful information requires specialized data processing.
• Existing methods may be cumbersome for large datasets.

Purpose of the Study:

• Introduce a MATLAB-based software for processing 3D spectrum imaging data (EEL/CL).
• Provide a user-friendly interface for spectral and positional data analysis.
• Facilitate visualization of subtle details within complex datasets.

Main Methods:

• Utilizes MATLAB for data processing and visualization.
• Accepts 3D spectrum image data in dm3 format (DigitalMicrograph®).
• Features a graphical user interface for intuitive operation.

Main Results:

• Enables fast mapping of spectral-dependent images and position-dependent spectra.
• Integrates essential data processing steps: background subtraction, deconvolution, and denoising.
• Offers multiple display options, including a movie maker for EEL/CL data.

Conclusions:

• The developed software is an efficient tool for analyzing large spectrum imaging datasets.
• It simplifies the visualization of otherwise hidden details in EEL/CL spectrum images.
• The program enhances the utility of spectrum imaging techniques in research.