Color Theory

Notes on how it works and made.

A variety of assorted topics:

• On the color brown, which is dark orange with context.

• Representation of color betwen RBG and HSV ; learning

Schubert 2018 figure annotated with left and right half response values

Figure 3 of Chapter 16 is approximately normally distributed: wavelengths for maximum relative sensitivity is listed on the top scale, half responses on the bottom, in nanometers.

$$f_i(\left.\lambda\right|\sigma_i,\mu_i)=\frac{e^{-\frac{1}{2}\left(\frac{\lambda-\mu_i}{\sigma_i}\right)^{2}}}{\sigma_i\sqrt{2 \pi}} \quad i = \{\text{blue, black, green, red}\}$$

The expression is equal to $1$ for the maximum and $0.5$ for the annotated values.

How people see color