Histogram-based method for contrast measurement

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A histogram-based technique for robust contrast measurement is proposed. The method is based on fitting the histogram of the measured image to the histogram of a model function, and it can be used for contrast determination in fringe patterns. Simulated and experimental results are presented.
© 2000 Optical Society of America. Juan Antonio Quiroga acknowledges the support of a postdoctoral grant of the Universidad Complutense de Madrid and the Becas Internacionales Flores-Valles program, Spain, and Centro de Investigaciones en Óptica, León, México. Luis Miguel Sánchez-Brea acknowledges the support of a predoctoral grant of the Ministerio de Educación y Cultura (Intercambio de Personal Investigador entre Industrias y Centros Públicos de Investigación) with Kinossel S.L. This study was supported in part by Sainco Tráfico, S.A., in the framework of Proyecto de Estímulo a la Transferencia de Resultados de Investigación (PETRI) program, Baliza Luminosa para el Guiado de Tráfico Vial con Tecnología LED project of the Ministerio de Educación y Cultura.
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