From c07d0c2d2f6f7b0eb6e92cc6204bf05037957e82 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Mon, 1 Sep 2014 15:43:52 +0200 Subject: Imported Upstream version 1.6.3 --- doc/ColorManagement.html | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) (limited to 'doc/ColorManagement.html') diff --git a/doc/ColorManagement.html b/doc/ColorManagement.html index fa7b656..50505cd 100644 --- a/doc/ColorManagement.html +++ b/doc/ColorManagement.html @@ -96,11 +96,11 @@ down by the International Commission on Illumination (CIE) in 1931 with the establishment of the CIE 1931 XYZ color space. This provides a means of predicting - what light spectra will match in color for a Standard Observer, who - represents the typical response of the Human eye under given viewing - conditions. Such a color space is said to be Device Independent since it is - not related to a particular technological capture or reproduction + what light spectra will be a color match to the Standard Observer. + The Standard Observer represents the typical response of the Human + eye under given viewing conditions. Such a color space is said to be + Device Independent since it + is not related to a particular technological capture or reproduction device. There are also closely related color-spaces which are direct transformations of the XYZ space, such as the L* a* b* space which is a more @@ -150,8 +150,8 @@
    A Device Link profile provides a transformation from one Device space to another. It is typically the result of - linking two device profiles, ie. Device A -> PCS -> Device B, - resulting in a direct Device A -> Device B transformation.
+ linking two device profiles, ie. Device 1 -> PCS -> Device 2, + resulting in a direct Device 1 -> Device 2 transformation.

Abstract

@@ -234,11 +234,11 @@ common white point (D50), to facilitate ease of matching colors amongst devices with different white points. Other viewing condition effects (ie. image luminance level, viewing surround luminance and - flare) can be modeled using (for example) using CIECAM02 to modify - XYZ values.
+ flare/glare) can be modeled using (for example) using CIECAM02 to + modify XYZ values.

Another limitation relates to spectral assumptions. CIE XYZ uses a - standard observer to convert spectral light values into XYZ values, + Standard Observer to convert spectral light values into XYZ values, but in practice every observer may have slightly different spectral sensitivities due to biological differences, including aging. (People with color deficient vision may have radically different @@ -252,7 +252,7 @@ of reflective prints from the light source used to view them, by characterizing a prints color by it's reflectance. This is very convenient, since a print will probably be taken into many different - lighting situations, but if the color is reduced to XYZ reflectance + lighting situations, but if the color is reduced to XYZ reflectance, the effect of the detailed interaction between the spectra of the light source and print will lead to inaccuracies.

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