InterColor Profile Format - CiteSeerX
InterColor Profile Format - CiteSeerX
InterColor Profile Format - CiteSeerX
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<strong>InterColor</strong> <strong>Profile</strong> <strong>Format</strong> Specification Version 3.0 June 10, 1994<br />
3.3 Output <strong>Profile</strong><br />
This profile represents output devices such as printers and film recorders. The LUT<br />
tags that are required by the printer profiles contain either the 8 bit or the 16 bit LUTs<br />
exclusively as described in the LUT tags. The bit precision supported must be<br />
consistent for all of the LUT tags. The LUT algorithm for profile connection space to<br />
device space transformations process data sequentially through a matrix, input tables, a<br />
color LUT, and output tables.<br />
3.3.1 Monochrome Output <strong>Profile</strong>s<br />
Tag Name<br />
profileDescriptionTag<br />
grayTRCTag<br />
mediaWhitePointTag<br />
copyrightTag<br />
General Description<br />
Structure containing invariant and localizable versions of<br />
the profile name for display<br />
Gray tone reproduction curve<br />
Media XYZ white point<br />
7 bit ASCII profile copyright information<br />
The tone reproduction curve provides the necessary information to convert between a<br />
single device channel and the CIEXYZ encoding of the profile connection space.<br />
The mathematical model implied by this data is connection = grayTRC[device].<br />
This represents a simple tone reproduction curve adequate for most monochrome input<br />
devices. The connection values in this equation should represent the achromatic<br />
channel of the profile connection space. If the inverse of this is desired, then the<br />
following equation is used, device = grayTRC −1 connection [ ].<br />
Multidimensional tables are not allowed to be included in monochrome profiles.<br />
3.3.2 RGB and CMYK Output <strong>Profile</strong>s<br />
Tag Name<br />
General Description<br />
profileDescriptionTag Structure containing invariant and localizable versions of<br />
the profile name for display<br />
AToB0Tag Device to PCS : 8 or 16 bit data: intent of 0<br />
BToA0Tag PCS to Device space : 8 or 16 bit data: intent of 0<br />
gamutTag<br />
Out of Gamut : 8 or 16 bit data<br />
AToB1Tag Device to PCS : 8 or 16 bit data: intent of 1<br />
BToA1Tag PCS to Device space : 8 or 16 bit data: intent of 1<br />
AToB2Tag Device to PCS : 8 or 16 bit data: intent of 2<br />
BToA2Tag PCS to Device space : 8 or 16 bit data: intent of 2<br />
mediaWhitePointTag Media XYZ white point<br />
copyrightTag<br />
7 bit ASCII profile copyright information<br />
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