Hi every one I am taking HDR images of different white LED light sources with different color temperature emitting on white diffusive background. I am trying to calculate CCT of each light source based on RGB extracted. But I am not sure how wide an HDR image can cover the differences between white color, like cool white and warm, based on RGB. I also illustrate them on chart to see how RGB values are acting for different light sources. As shown in the following: [cid:[email protected]] [cid:[email protected]]
So my question is : 1)is HDR able to give me the difference between white colors (different CCT) based on RGB value ?( or would I be able to extract CCT from an HDR image ?) 2) when the light source is getting cooler, R values getting slightly lower. Is this point of view acceptable here ? B and G value are almost the same. Is there a reason for that ? Thank you very much !
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