xyz2rgb input arg

Question

Loong Yeat Pong 2020-5-18

回答： Sriram Tadavarty 2020-5-18

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?

Answer 1

Sriram Tadavarty 2020-5-18

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