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xyz2rgb input arg

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Hi, I'm confused about the input arg for xyz2rgb. It says:
RGB = xyz2rgb(XYZ) converts CIE 1931 XYZ values (2° observer) to sRGB values.
Do the XYZ values refer to the tristimulus values or the colour coordinates?

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Accepted Answer

Sriram Tadavarty
Sriram Tadavarty on 18 May 2020
Hi Loong,
XYZ is the tristimulus values and not the coordinate system, since the color space is varied from XYZ to RGB.
You can directly provide a XYZ colorspace image of size m-by-n-by-3 and you can convert to RGB image.
To convert RGB to XYZ, use rgb2xyz function.
For more details about different color spaces and usages, look at this page.
Hope this helps.
Regards,
Sriram

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