Convert a uint16 into values into RGB

Hello Matlab community!

I have a question regarding the transformation of an uint16 values captured by a arduino photoeletric sensor to RGB values. The image below is the photodiode spectral responsivity. Clear are the photodiodes without any spectral filters.

The cod below is provided by the manufacturer itself in order to transform the uint16 into rgb values, however it is a bit confused to me still on why they would assume the entire sum of the is equal to clear, is it perphaps as seen in the image below, all the channels are included within the clear channel itself? The manufacturer explained very briefly something about being adapted to "low RGB resolution" so it can be seem by screens, however it did not developed anymore.

The end result is in RGB I am just trying to comprehend the exact theory behind it

uint16_t sum = clear;
  float r, g, b;
  r = red; 
  r /= sum;
 
  g = green; 
  g /= sum;
  
  b = blue; 
  b /= sum;
  
  r *= 256; g *= 256; b *= 256;

[Rik]

I don't recognize this language. Shouldn't you ask this question on a forum about either this device, or this language?

[Sarah DS]

I have but no one is capable of provding an answer. This is C++.

[Rik]

If your question is not directly related to Matlab, why did you post it here?

What kind of data goes into this function? What kind of output is expected? Have a read here. It will greatly improve your chances of getting an answer.

[Sarah Sierra]

You are right sir, if you don't mind, in that case is better to be deleted. Sorry for trouble

Answer 1

[Surabhi KS]

If you have an image I that is uint 16 you could try this to convert it to RGB:

I = mat2gray(I);

IRGB = cat(3, I, I, I);

imshow(IRGB)