Color management workflow in Adobe After Effects CS4
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a second ICC profile. The PCS is used by the CMM; it is not visible to users.
recommendation 709:
ITU-R Recommendation BT. 709, more commonly known by the abbre-
viations Rec. 709 or BT. 709, standardizes the format of high-definition television. Rec. 709 and
sRGB are sometimes used interchangeably. However, Rec. 709 specifies the capture and transfer
characteristics of an HD TV signal, and sRGB specifies the characteristics of a reference monitor
that can be sued to view that HD TV signal.
rendering intents:
The methods, specified by the ICC, used for mapping colors from one color
space to another. The four rendering intents are Perceptual, Saturation, Relative Colorimetric,
and Absolute Colorimetric.
source profile:
An ICC profile describing the color gamut and reproduction characteristics
of a device or color space from which images are captured, scanned, or stored, such as a digital
camera, scanner, or standard working space. Colors are converted from a source profile to a
destination profile.
spectrophotometer:
A device that measures a color sample throughout a specified number of
wavelengths through the visible color spectrum.
srgb:
A color space using the ITU-R BT. 709-5 primaries, the same as are used in studio moni-
tors and HDTV, and a transfer function (gamma curve) typical of CRTs.
white point:
The color quality of white usually expressed using xy chromaticity coordinates.
working space:
Default ICC profile used by the application to define appearance of color values.
In After Effects, the project working space is the color space used for all compositing functions.
XyZ color model:
see CIE XYZ
