Questions tagged [chromaticity]
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Why are the colors in the 1931 CIE xyY chromaticity diagram white?
When we look at the 1931 CIE chromaticity diagram, represented within the x y plane of xyY space, it renders white colors (or close to white) at points of luminance like the D65 point highlighted here with E.
But why is this the case? The point for…

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I can't get vImage (Accelerate Framework) to convert 420Yp8_Cb8_Cr8 (planar) to ARGB8888
I'm trying to convert Planar YpCbCr to RGBA and it's failing with error kvImageRoiLargerThanInputBuffer.
I tried two different ways. Here're some code snippets.
Note 'thumbnail_buffers + 1' and 'thumbnail_buffers + 2' have width and height half of…

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How is the cieplot 1931 chromaticity diagram calculated in matlab?
I'm completely baffled by the chromaticity diagram calculation in matlab.
It is found here code found here.
The xyz to srgb conversion is standard.. though it seems to be missing an illuminant adaptation.
function [rgb] = xyz2srgb(xyz)
M = […

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