AWARE [SYSTEMS] Imaging expertise for the Delphi developer
AWare Systems, Imaging expertise for the Delphi developer, Home Extension TIFF Tag PrimaryChromaticities

TIFF Tag Reference

TIFF Tag Reference
TIFF Tag Search

Extension TIFF Tags

Previous Tag
Next Tag

Contact

Information: info@awaresystems.be
Helpdesk: support@awaresystems.be
Sales: sales@awaresystems.be



Valid HTML 4.01!



TIFF Tag PrimaryChromaticities

IFDImage
Code319 (hex 0x013F)
NamePrimaryChromaticities
LibTiff nameTIFFTAG_PRIMARYCHROMATICITIES
TypeRATIONAL
Count6
DefaultNone

Description

The chromaticities of the primaries of the image.

This is the chromaticity for each of the primaries when it has its ReferenceWhite value and the other primaries have their ReferenceBlack values. These values are described using the 1931 CIE xy chromaticity diagram and only the chromaticities are specified. These values can correspond to the chromaticities of the phosphors of a monitor, the filter set and light source combination of a scanner or the imaging model of a rendering package. The ordering is red[x], red[y], green[x], green[y], blue[x], and blue[y].

For example the CCIR Recommendation 709 primaries are:
640/1000,330/1000,
300/1000, 600/1000,
150/1000, 60/1000