Module retroimg::color

Color depth manipulation module

Modules

• cga
  CGA color palettes.
• ega
  EGA color palettes.

Structs

• BackForePalette
  Color depth emulating a combination of one freely selectable background color (B) with any of the other colors (F).
• BestPalette
  A collection of palettes, the one yielding the lowest loss is used.
• ColorOptions
  The options for transforming an image to have a different color depth.
• FixedPalette
  Color depth defined by a hardware-level palette of RGB colors.
• LossAlgorithmParseError
  An error returned by a failed attempt at creating a LossAlgorithm from a string.
• MappingColorDepth
  A color depth implementation with color mapping.
• TrueColor24BitMapper
  True 24-bit color, 8 bits per channel, virtually no limit in color depth.
• Vga16BitMapper
  A color mapper that reduces pixel precision to 16 bits per pixel (5 bits for red, 6 bits for green, 6 bits for blue).
• Vga18BitMapper
  A color mapper that reduces sample precision to 6 bits per sample (18 bits per pixel).

Enums

• LossAlgorithm
  Enumeration of supported color distance algorithms for loss calculation.

Statics

• BW_1BIT
  64 color palette established by the full-color EGA standard.
• PALETTE_BW_1BIT
  64 color palette established by the full-color EGA standard.

Traits

• ColorDepth
  Color depth image converter.
• ColorMapper
  Trait for anything which maps one color to another.

Functions

• colors_to_image

Type Aliases

• TrueColor24Bit
  A color depth implementation which retains all 24 bits per pixel.
• Vga16Bit
  VGA 16-bit color, also called High color mode in legacy systems (5 bits for red and blue channels, 6 bits for green)
• Vga18Bit
  VGA 18-bit color (64 levels per channel)