The Visual Computer

, Volume 29, Issue 6, pp 773–783

Interactive chromaticity mapping for multispectral images

  • Yanxiang Lan
  • Jiaping Wang
  • Stephen Lin
  • Minmin Gong
  • Xin Tong
  • Baining Guo
Original Article

DOI: 10.1007/s00371-013-0829-x

Cite this article as:
Lan, Y., Wang, J., Lin, S. et al. Vis Comput (2013) 29: 773. doi:10.1007/s00371-013-0829-x
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Abstract

Multispectral images record detailed color spectra at each image pixel. To display a multispectral image on conventional output devices, a chromaticity mapping function is needed to map the spectral vector of each pixel to the displayable three dimensional color space. In this paper, we present an interactive method for locally adjusting the chromaticity mapping of a multispectral image. The user specifies edits to the chromaticity mapping via a sparse set of strokes at selected image locations and wavelengths, then our method automatically propagates the edits to the rest of the multispectral image. The key idea of our approach is to factorize the multispectral image into a component that indicates spatial coherence between different pixels, and one that describes spectral coherence between different wavelengths. Based on this factorized representation, a two-step algorithm is developed to efficiently propagate the edits in the spatial and spectral domains separately. The method presented provides photographers with efficient control over color appearance and scene details in a manner not possible with conventional color image editing. We demonstrate the use of interactive chromaticity mapping in the applications of color stylization to emulate the appearance of photographic films, enhancement of image details, and manipulation of different light transport effects.

Keywords

Multispectral imaging Chromaticity mapping Edit propagation 

Supplementary material

(AVI 20.0 MB)

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Yanxiang Lan
    • 1
    • 2
  • Jiaping Wang
    • 3
  • Stephen Lin
    • 2
  • Minmin Gong
    • 2
  • Xin Tong
    • 2
  • Baining Guo
    • 1
    • 2
  1. 1.Tsinghua UniversityBeijingChina
  2. 2.Microsoft Research AsiaBeijingChina
  3. 3.Microsoft CorporationRedmondUSA

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