An algorithm for the enhancement of images of large dynamic range

Firas Hassan; Joan E. Carletta

doi:10.1117/12.643143

17 February 2006 An algorithm for the enhancement of images of large dynamic range

Firas Hassan, Joan E. Carletta

Proceedings Volume 6064, Image Processing: Algorithms and Systems, Neural Networks, and Machine Learning; 606415 (2006) https://doi.org/10.1117/12.643143
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

This paper introduces a novel algorithm for the enhancement of images of large dynamic range. In addition to dynamic range compression, the method provides control of brightness and contrast. The dynamic range compression is done in the spatial domain using the log transformation. Brightness and contrast control are done in the biorthogonal 9/7 wavelet transform domain. The algorithm can be easily added on to a JPEG2000 image compression system with only a modest increase in the computational complexity. Experimental results have shown comparable visual quality with the previously published Retinex algorithm.

Citation Download Citation

Firas Hassan and Joan E. Carletta "An algorithm for the enhancement of images of large dynamic range", Proc. SPIE 6064, Image Processing: Algorithms and Systems, Neural Networks, and Machine Learning, 606415 (17 February 2006); https://doi.org/10.1117/12.643143

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