SGIPaletteImg

DESCRIPTION

Convert to a RGB palette color model using a default SGI lookup table. The RGB image is dithered and then mapped to the lookup table. The output is intended to be suitable for writing to a colormap window using rectwrite() or writepixels(). The dithering matrix used is:
0   8   2  10
2   4  14   6
3  11   1   9
5   7  13   5

INPUTS

Port: Img In
Type: Lattice
Constraints: 1..3-D
Source image.

WIDGETS

OUTPUTS

Port: Img Out
Type: Lattice
Constraints: 1..3-D
Image converted to lookup indices.

KNOWN PROBLEMS

SEE ALSO

WriteImg.
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© The Numerical Algorithms Group Ltd, Oxford UK. 2000