Color the night : applying daytime colors to nighttime imagery
conference paper
We present a method to give (fused) multiband night-time imagery a natural day-time color appearance. For input, the method requires a false color RGB image that is produced by mapping 3 individual bands (or the first 3 principal components) of a multiband nightvision system to the respective channels of an RGB image. The false color RGB nightvision image is transformed into a perceptually decorrelated color space. In this color space the first order statistics of a natural color image (target scene) are transferred to the multiband nightvision image (source scene). To obtain a natural color representation of the multiband night-time imagery, the compositions of the source and target scenes should resemble each other to some degree. The inverse transformation to RGB space yields a nightvision image with a day-time color appearance. The luminance contrast of the resulting color image can be enhanced by replacing its luminance component by a grayscale fused representation of the three input bands.
TNO Identifier
12641
Publisher
SPIE
Source title
Enhanced and Synthetic Vision 2003, 21 April 2003 through 21 April 2003, Orlando, FL
Editor(s)
Verly, J.G.
Place of publication
Bellingham
Pages
168-178