Research Papers: General

Optimal illumination for local contrast enhancement based on the human visual system

[+] Author Affiliations
Huihui Wang

Zhejiang University, State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, 38 Zheda Road, Hang Zhou 310027, China

Eindhoven University of Technology, Human Technology Interaction Group, School of Industrial Engineering and Innovation Sciences, Den Dolech 2, Eindhoven 5600 MB, the Netherlands

Raymond H. Cuijpers

Eindhoven University of Technology, Human Technology Interaction Group, School of Industrial Engineering and Innovation Sciences, Den Dolech 2, Eindhoven 5600 MB, the Netherlands

Ming Ronnier Luo

Zhejiang University, State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, 38 Zheda Road, Hang Zhou 310027, China

University of Leeds, School of Design, Woodhouse Lane, Leeds LS2 9JT, United Kingdom

Ingrid Heynderickx

Eindhoven University of Technology, Human Technology Interaction Group, School of Industrial Engineering and Innovation Sciences, Den Dolech 2, Eindhoven 5600 MB, the Netherlands

Zhenrong Zheng

Zhejiang University, State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, 38 Zheda Road, Hang Zhou 310027, China

J. Biomed. Opt. 20(1), 015005 (Jan 27, 2015). doi:10.1117/1.JBO.20.1.015005
History: Received October 21, 2014; Accepted December 31, 2014
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Abstract.  The observed color of an object is influenced by the spectral distribution of an illuminant impinging upon it. Here we explored a method to obtain optimal illumination spectra for local contrast enhancement based on human vision. First, multispectral imaging was used to measure the spectral reflectance of the sample and color segmentation was used to extract its color features. Then we obtained the target-specific optimal illumination by maximizing the color differences of mutual colors in our sample tissue. To verify the effectiveness of this method, simulated images under the optimized illumination were compared to illumination with the standard illuminant D65 and a cool white light-emitting diode (5500 K). Results showed that the sample under the optimized illumination had a better perceptual color contrast.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Huihui Wang ; Raymond H. Cuijpers ; Ming Ronnier Luo ; Ingrid Heynderickx and Zhenrong Zheng
"Optimal illumination for local contrast enhancement based on the human visual system", J. Biomed. Opt. 20(1), 015005 (Jan 27, 2015). ; http://dx.doi.org/10.1117/1.JBO.20.1.015005


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