English: Based on: CIExy1931
As a replacement for an existing image with an unclear copyright status. The image highlights the sRGB gamut. The description of that image follows:
The colors for this diagram were generated using the RGB color space in en:Adobe photoshop. The transformation from xy chromaticity coordinates was done using the en:sRGB color space specification on the [X,Y,Z]=[x,y,1-x-y] tristimulus values, then multiplying by a constant so that one of the R, G, or B values was maximized. Assuming that one's monitor converts Adobe photoshop RGB according to the sRGB color space (probably a good assumption) then, within the sRGB gamut, the chromaticities are correct, but are incorrect outside the gamut. (See the sRGB article for a description of the sRGB gamut). The process of maximizing the value of R, G, or B results in a distinct 3-pointed star in the diagram, centered at the D65 white point. This is because, although the chromaticities are correct, the luminosities (brightness values) are not equal across the diagram. If the luminosities were all made equal, then the entire diagram would be rather dark, since pure blue has a low luminosity. Any attempt to equalize luminosity to remove the star will reduce the overall luminosity of the diagram, and the star will not completely disappear until the diagram is very dark. Alternatively, we could blur the colors to get rid of the star, which would give incorrect chromaticities. I have opted for correct chromaticities at maximum brightness, thus the presence of the star.
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2006-05-06 16:28 Hankwang 542×599× (106794 bytes) Based on [[image:CIExy1931.png|thumb|CIExy1931]]
ترخيص
Public domainPublic domainfalsefalse
وضع -Hankwang في ويكيبيديا الإنجليزية-، وهو المؤلف، هذا العمل في النِّطاق العامِّ. يسري ذلك في كل أرجاء العالم. في بعض البلدان، قد يكون هذا التَّرخيص غيرَ مُمكنٍ قانونيَّاً، في هذه الحالة: يمنح Hankwang الجميع حق استخدام هذا العمل لأي غرض دون أي شرط ما لم يفرض القانون شروطًا إضافية.Public domainPublic domainfalsefalse
هذه diagram الصورة / الصورتان باستعمال رسومات متجهية ملفات رسوميات شعاعية.
It is recommended to name the SVG file "CIExy1931 srgb gamut.svg" - then the template Vector version available (or Vva) does not need the new image name parameter.
{{Information |Description={{en|Based on: thumb|none|CIExy1931 As a replacement for an existing image with an unclear copyright status. The image highlights the sRGB gamut.}} |Source=Transferred from [http://en.wikipedia.org