Image enhancement circuit using non-linear processing curve and constrained histogram range equalization

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 5308, Issue PART 2, 2004, Pages 1106-1116

  Cvetkovic, Sascha D ^a   De With, Peter H N ^b  

^a Bosch Security Systems   (Netherlands)

^b EINDHOVEN UNIVERSITY OF TECHNOLOGY   (Netherlands)

Author keywords

Contrast enhancement; Dynamic range expansion; Histogram equalization; Video signal enhancement

Indexed keywords

IMAGE COMPRESSION; IMAGING TECHNIQUES; LUMINESCENCE; NONLINEAR SYSTEMS; REAL TIME SYSTEMS; SENSORS; STATISTICAL METHODS; VIDEO SIGNAL PROCESSING;

CONTRAST ENHANCEMENT; DYNAMIC RANGE EXPANSION; HISTOGRAM EQUALIZATION; VIDEO SIGNAL ENHANCEMENT;

IMAGE ENHANCEMENT;

EID: 10444222514     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.526814     Document Type: Conference Paper

References (7)

1. P.B. Dielhof and R.M.W. van der Heijden, "Dynamic Range Modification", patent number WO 99/29101, June 1999.
2. M. Atsushi, "An imaging method and device for a wide dynamic range", patent number US 5.455.621, May 1994.
3. D. Yang. B. Fowler and A. El Gamal, "A Nyquist Rate Pixel Level ADC for CMOS Image Sensors", IEEE Journal of Solid State Circuits, Vol. 34, No. 7, pp.348-356, March 1999.
4. O. O Ewedemi, R. J. Motta, Z. Deng, X. Peng, Y. Wei, D. X. D. Yang, "Method and apparatus for optimizing exposure time in image acquisitions", patent number EP 1.148.713, October 2001.
5. R.C. Gonzales, Richard E. Woods, Digital Image Processing, Addison-Wesley Publishing Company Inc., ISBN 0-201-50803-6, 1993, pp. 171-182.
6. G. de Haan, Video Processing for multimedia systems, printed by University Press Facilities Eindhoven, ISBN 90-9014015-8, pp. 39-43.
7. Y. Kim, "Image enhancement method and circuit using quantized mean-matching histogram equalization", patent number US 5.937.090, August 1999.