The output look up table maps the 8 bit intensity information onto 24 bit false colour space. The mapping chosen will depend on the type of features to be seen.
0 Monochrome positive display.
1 Monochrome negative display.
2 False colour Blk-R-RG-G-GB-B-BR-RB/2G/2-White in continuous transitions.
3 Graph false colour. White-Black-Blue-Cyan-Green-Yellow-Red-Magenta-Blue in continuous transitions. This table is primarily of use for rendering hard copy of colour images.
4 Psuedo contours marking eight specific intensity levels.
5 One R cycle, eight G cycles, 64 B cycles.
6 64 R cycles, eight G cycles, one B cycle.
7 Eight RG cycles, one B cycle.
8 Monochrome positive with seven psuedo contours picked out in false colour.
9 Circular mapping: blk-R-blk-G-blk-B-blk-Y-blk
A Paeno mapping
B Spectral mapping
C Modified spectral mapping
D Knud Lunde's mapping
E All combinations
F Low intensity version of 2. The mappings for intensities 0 to 254 give the same colour as table 2, but with half the intensity. An intensity of 255 gives white at the full intensity.
G True colour - pure. This table is provided for use in conjunction with the [;GR Real colour grab] facility. It maps the red component onto bits 0,3 & 6, the green onto bits 2 & 5, and the blue onto bits 1, 4 & 7.
H True colour - slight dilution. This table is similar to [G True colour - pure] except that the colours are diluted by a small amount of white.
I True colour - medium dilution. This table is similar to [G True colour - pure] except that the colours are diluted by a medium amount of white.
J Periodic colour - white at 128. This LUT is periodic in nature with white at intensities of 128 and black at 0 and 255. The table is designed for displaying zero-crossing data. When offset to 128, the table is ideal for colour printing using the PaintJet XL.
L Single cycle, slightly whitened. This table is the same as 2 except that some white has been added (primarily to conserve ink when printing). Also, intensity 0 is white and intensity 255 is black.
M Single cycle, slightly whitened. This table is the same as 2 except that some white has been added (primarily to conserve ink when printing). This table has more white than [L...]. Also, intensity 0 is white and intensity 255 is black.
N MS Windows 8bit colours. This is the colour scheme used by some Microsoft Windows programs producing full colour by dithering eight bits. As with [G...] and [H...] there are 3 bits for Red (bits 7, 6 & 5) and Green (bits 5, 4 & 2) and only two bits for Blue (bits 1 & 0). The order of the bits, however, is different.
O Yellow-Blue mapping. Varies from Cyan, through Blue, Grey and Orange to Yellow. Set to Black at 0 and White at 255.
P JFM colour scheme. This colour scheme was introduced for use with velocity/scalar field plots. The scheme [F Low intensity version of 2] looks better, but unfortunately JFM had trouble printing the dominant cyan!
R Bruce's cyclic table. Contoured colour scheme designed by Bruce Sutherland.
S Jake's favourite. Smoothly varying colour scheme designed by Jake Hacker.
<down> Use previous LUT. This option is equivalent to pressing function key f3.
<up> Use next LUT. This option is equivalent to pressing function key f4.
U Table read in from a user-specified file.