Reply to comment

Why don't we just post the whole section of the article. It states the same thing I did in my past post and the same thing this site states if you read it all in context. I added in a couple words for clarification in my previous post for those that may not understand what they are stating. You conventionally rewrote it out of context.

To be clear it states in the article below:
(quote) "People experience light as having three features: color, brightness, and saturation. These three types of experiences come from three corresponding characteristics of light waves:" (end quote.)

People "experience" light as having color based on "characteristics of light waves". In other words radiation from the Sun does not contain color as a property nor does it contain color as it enters our eyes. Radiation waves have "mathematical characteristics". The human mind "experiences" these "mathematical characteristics" of reflected radiation as having color, brightness and saturation.

The color we perceive is a function of the distance between the wave peaks of the radiation. There is no color involved there. Only information. "The distance between the peaks of the waves". ~~~ Our eyes and mind convert this information into the perception of color.

The height of the radiation wave ~ determines the brightness created in our mind. Height of a radiation wave is only information. The "Height" of a radiation wave does not contain brightness or color.

In other words: Our "eyes and mind" are using mathematics to calculate what the world and universe "looks like" based on reflected radiation. Our mind takes that calculation and displays it as a visual color image within our mind. A television or computer screen basically works the same way except that a TV or computer screen can not create color. The TV and computer screen only output more information that our eyes and mind can interpret as color and brightness. Nothing in this world is capable of creating brightness and color except the mind of a living being. It's not fully understood how these images form in our minds eye.

I really don't understand why some people act upset that color is only a perception. It's nothing to get rude about. Color really exists in our mind as a perception. It just doesn't exist outside of the mind.

Article below:
*************************
Researchers have studied vision more thoroughly than the other senses. Because people need sight to perform most daily activities, the sense of sight has evolved to be highly sophisticated. Vision, however, would not exist without the presence of light. Light is electromagnetic radiation that travels in the form of waves. Light is emitted from the sun, stars, fire, and lightbulbs. Most other objects just reflect light.

People experience light as having three features: color, brightness, and saturation. These three types of experiences come from three corresponding characteristics of light waves:

1. The color or hue of light depends on its wavelength, the distance between the peaks of its waves.

2.The brightness of light is related to intensity or the amount of light an object emits or reflects. Brightness depends on light wave amplitude, the height of light waves. Brightness is also somewhat influenced by wavelength. Yellow light tends to look brighter than reds or blues.

3.Saturation or colorfulness depends on light complexity, the range of wavelengths in light. The color of a single wavelength is pure spectral color. Such lights are called fully saturated. Outside a laboratory, light is rarely pure or of a single wavelength. Light is usually a mixture of several different wavelengths. The greater number of spectral colors in a light, the lower the saturation. Light of mixed wavelengths looks duller or paler than pure light.

Wavelength ——> Color
Amplitude ——> Brightness
Complexity ——> Saturation