Standard and Wide Gamut colour code (SGcode and WGcode) compatible with CIELAB, ISO/IEC 15775 and DIS ISO/IEC 19839-1 to 4 for colorimetric colour management and communication
- For colorimetric colour management and
communication 8bit colour codes in perceptive
space (*colour space) are described. Two Standard
Gamut Colour codes for Printing (PR) and Television
(TV) and one universal Wide Gamut Colour code
(WGcode) which includes all real colours of both PR
and TV. There are reverse transformations between
the two different SGcodes of PR and TV, the
universal WGcode and the CIELAB colour
coordinates. The SGcodes and the WGcode are
compatible with CIELAB, ISO/IEC 15775 and DIS
ISO/IEC 19839-1 to 4 which specify image
reproduction properties of colour copiers, printers,
scanners and monitors. These standards correspond
to DIN 33866-1 to 5.
The SGcodes and the WGcode can be calculated for
all colours of the four ISO/IEC-test charts which are
all defined in CIELAB coordinates. Main colour
series are equally spaced in CIELAB colour space
both in lightness L* and chroma C*. Up to now there
are productions of DIN (German Standard Institute)
and JBMA (Japan BusinessFor colorimetric colour management and
communication 8bit colour codes in perceptive
space (*colour space) are described. Two Standard
Gamut Colour codes for Printing (PR) and Television
(TV) and one universal Wide Gamut Colour code
(WGcode) which includes all real colours of both PR
and TV. There are reverse transformations between
the two different SGcodes of PR and TV, the
universal WGcode and the CIELAB colour
coordinates. The SGcodes and the WGcode are
compatible with CIELAB, ISO/IEC 15775 and DIS
ISO/IEC 19839-1 to 4 which specify image
reproduction properties of colour copiers, printers,
scanners and monitors. These standards correspond
to DIN 33866-1 to 5.
The SGcodes and the WGcode can be calculated for
all colours of the four ISO/IEC-test charts which are
all defined in CIELAB coordinates. Main colour
series are equally spaced in CIELAB colour space
both in lightness L* and chroma C*. Up to now there
are productions of DIN (German Standard Institute)
and JBMA (Japan Business Machine Makers
Association) according to ISO/IEC 15775 which can
be used for all applications.
The 8bit SGcode of television is similar compared to
the nonlinear 8bit code of the sRGB colour space
defined in IEC 61966-2-1:1999-10 which is
incompatible to CIELAB and ISO/IEC 15775.…