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Glasbey
Glasbey (Discontinuous color table) | |
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Maintainer | Gabriel Landini |
Source | [1] and [2] |
Category | Category:Color_processing |
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Like other LUTs, it is available from the Image › Lookup Tables menu.
The LUT called "glasbey" uses white at the first index, whereas "glasbey inverted" starts with black.
Labelings
The Glasbey LUT has numerous uses. It is ideal when coloring a "labeling" of integer-coded regions, since each region will then appear obviously distinct:
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JPEG artifacts
Glasbey can also be used to illustrate otherwise-subtle phenomena such as JPEG compression artifacts. Here is a comparison of the Boats sample image before and after being resaved as a JPEG:
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Error creating thumbnail: Unable to save thumbnail to destination
Publication
The Glasbey LUT is based on the publication:
- Glasbey, Chris; van der Heijden, Gerie & Toh, Vivian F. K. et al. (2007), "Colour displays for categorical images", Color Research & Application 32.4: 304-309, <http://onlinelibrary.wiley.com/doi/10.1002/col.20327/abstract>.