Colour bit-stealing to enhance the luminance resolution of digital displays on a single pixel basis

Spat Vis. 1997;10(4):369-77. doi: 10.1163/156856897x00294.


A look-up table algorithm is described for enhancing the luminance resolution at the expense of the colour resolution in digital displays of colour images. For colour displays with a look-up table resolution of 8 bits/gun, the algorithm provides a luminance resolution of 11-12 bits without loss of spatial or temporal resolution. This improvement can reduce the minimum luminance step in the mid-luminance range from 1.5% to > 0.2% with no additional hardware.

MeSH terms

  • Algorithms
  • Color Perception*
  • Computer Terminals*
  • Contrast Sensitivity*
  • Data Display*
  • Humans
  • Observer Variation
  • Psychophysics
  • Software