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PC/MAC* Image Processing Freeware for Examining Spectral Images

Published online by Cambridge University Press:  02 July 2020

D. S. Bright
D. S. Bright*
Affiliation:
Surface and Microanalysis Science Div., Natl Inst, of Stds. and Technology, Gaithersburg, MD. , 20899-8371
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MacLispix, a public domain image processing system for the Macintosh*, has been applied to a variety of image processing problems, such as using Principal Component Analysis to explore correlated images. The tools provided by MacLispix are now available in Lispix, the updated version that runs on both the PC and the Macintosh.

I will illustrate the utility of Lispix by way of an example ‘data cube', a low voltage energy dispersive x-ray spectrum image provided by Ian Anderson. The ‘cube'is 200x150 pixels, each pixel having a spectrum of 512 two-byte channels The spectra were smoothed and reduced by adding adjacent channels to reduce them to 256 channels each. Since Lispix is image oriented rather than spectrum oriented, the reduced cube is stored, and represented internally as 256 images (one image for each channel in the spectrum), rather than as 200x150 spectra (one spectrum for each pixel in the image).

Type
Spectrum Imaging: Applications and Methods of Analysis
Information
Microscopy and Microanalysis , Volume 6 , Issue S2: Proceedings: Microscopy & Microanalysis 2000, Microscopy Society of America 58th Annual Meeting, Microbeam Analysis Society 34th Annual Meeting, Microscopical Society of Canada/Societe de Microscopie de Canada 27th Annual Meeting, Philadelphia, Pennsylvania August 13-17, 2000 , August 2000 , pp. 1056 - 1057
Copyright
Copyright © Microscopy Society of America

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References

References:

1.Bright, D. S., Microbeam Analysis 4 (1995) 151–163.Google Scholar
2.Bright, D.S., Microbeam Analysis - (Proc. 29th MAS Annual Conference, Breckenridge, CO.) (1995) 389-390.Google Scholar
3.Bright, D.S. “Lispix: A Public Domain Scientific Image Analysis Program for the PC and Macintosh.”, this proceedings. Available from http://www.nist.gov/lispix/.Google Scholar
4.Data courtesy of Ian Anderson, Oak Ridge Natl. Labs. Details of data: Anderson, I.M., Microscopy & Microanalysis 5 (Proc. suppl. 2) (1999) 318.CrossRefGoogle Scholar
5.Jackson, J.EA USERS GUIDE TO PRINCIPAL COMPONENTS, John Wiley NY(1991), “broken stick model', p. 47.CrossRefGoogle Scholar