Question

How do I calculate wavelength (Spectrum) into RGB (Color) ? I really need a formula or example of this calculation.

Answer 1

Converting a specific wavelength of light to an RGB color value involves a mathematical approximation since the relationship between wavelength and perceived color is complex. One common method is to use the CIE XYZ color space, which is a standard color space that approximates human color perception.

To convert a wavelength to an RGB color value, you can follow these general steps:

1. Convert the wavelength to the corresponding CIE xy chromaticity coordinates.
2. Convert the xy chromaticity coordinates to the CIE XYZ color space.
3. Convert the XYZ color values to linear RGB values.
4. Apply gamma correction to the linear RGB values to obtain the final RGB color values.

Here is an example implementation in Python:

pythonCopy code