| Title | Intensity-Hue-Saturation Colour Display Transform for Hyperspectral Data |
| Download | Downloads (Preprint) |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Beauchemin, M; Fung, K B |
| Source | Fourth International Airborne Remote Sensing Conference and Exhibition/21st Canadian symposium on Remote Sensing, Ottawa, Ontario, Canada, 21-24 June; 1999., https://doi.org/10.4095/219516  Open Access |
| Year | 1999 |
| Alt Series | Earth Sciences Sector, Contribution Series 20042714 |
| Document | book |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Released | 1999 01 01 |
| Abstract | A technique for producing consistent colour composites from hyperspectral data is presented. It is based on the intensity-hue-saturation (HIS) colour transform, a model related to the human perception
of colours. The method is simple and robust. The ordinary moment (order zero) of the spectral distribution is assigned to the Intensity component - the perceived luminance. The center of gravity of the distribution is used for the Hue component - the
dominant wavelength or colour. Finally, the fraction of the total flux (Intensity) inside a window of a predefined width centered at the Hue (center of gravity) is taken as the Saturation - the purity of the dominant wavelength. A saturation measure
derived from variance is also considered, providing a full moment-based IHS transform. Each component is linearly stretched for contrast enhancement and projected to the RGB colour space using the hexcone model. The method is illustrated with a casi
(Compact Airborne Spectrographic Imager) image. Further tests are needed to evaluate the potentials of the method for diversified landscapes and different sensor configurations. |
| GEOSCAN ID | 219516 |
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