Contrast preserving color fusion

Jan Kamenicky; Barbara Zitova

doi:10.1117/12.872392

25 January 2011 Contrast preserving color fusion

Jan Kamenicky, Barbara Zitova

Proceedings Volume 7866, Color Imaging XVI: Displaying, Processing, Hardcopy, and Applications; 78660L (2011) https://doi.org/10.1117/12.872392
Event: IS&T/SPIE Electronic Imaging, 2011, San Francisco Airport, California, United States

Abstract

We will address the problem of edge preserving image fusion for visualization and for printing of two intensity images from different modalities. The most important point is that instead of degrading the contained information by intensity output only, we will compute a color image in the way that gives us better possibility to control edge preservation. The most common approach in these situations is the use of an alpha-blending, leading in some cases to worse visibility of edges present in one of the input images. The proposed method is meant to solve this issue by preserving intensity changes in the input images equally, independently of the other modality. The main idea of the method is based on the perceptual color difference. A 2D rectangular color mapping scheme is created in such a way, that color differences as perceived by the human eye in all points are nearly the same. Then, this mapping scheme is applied to generate the output color. The proposed method can help to distinguish even slight differences in any input modality without risk of losing details. Modifications of the proposed method can be derived for special cases where certain intensity intervals are more important than others.

Citation Download Citation

Jan Kamenicky and Barbara Zitova "Contrast preserving color fusion", Proc. SPIE 7866, Color Imaging XVI: Displaying, Processing, Hardcopy, and Applications, 78660L (25 January 2011); https://doi.org/10.1117/12.872392

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