12.2 Colors and Color Spaces

In this section we will consider ways to modify the pixels of an image on a local basis. That is, each output pixel will be a function of a single corresponding input pixel. Convolution, a non-local operation, will be considered in the next section.

 
• 12.2.1 The Accumulation Buffer: Interpolation and Extrapolation
• 12.2.2 Pixel Scale and Bias Operations
• Look-Up Tables
  • Pixel Maps
  • The Color Table Extension
  • The Texture Color Table Extension
  • The Pixel Texture Extension
    • Equivalent Functionality Without SGIX_pixel_texture
• 12.2.4 The Color Matrix Extension
  • Equivalent Functionality Without SGI_color_matrix
  • Scale and Bias
  • Conversion to Luminance
  • Modifying Saturation
  • Hue Rotation
  • CMY Conversion
  • YIQ Conversion