We can however build devices that can detect these other frequencies and convert them to something we can hear or see or otherwise display. The various colors we see each occupy a short span of the visible range. White light is a mix of all frequencies in the visible range. Black is the absence of light. We can mix red, green and blue in different amounts and make almost all the other colors. Color photography takes thee unique pictures simultaneously using only the three primary colors of red, green, and blue.
This is how TV and digital phones and cameras capture and display colored pictures. This is really a philosophy and metaphysics and psychology and all sorts of question far outside the realm of photography but to simplify it as best I can:. You can call black a color or not. By definition its more not a color than it is one. A few key points:. Color does not exist on an object. An apple is not Red, to make any claims that an apple is Red is a gross simplification.
An apple has the ability to absorb all white light besides the wavelengths that most people perceive as red. But again this assumes that a white light is present or at least a light containing the wavelength most commonly perceived as red. This assumes the apple is in good health. This assumes the person or thing processing it can see that wavelength in the most commonly understood fashion.
That's a lot of assumptions! People have three types of cones and one type of rod. Except when we don't. Most people are familiar with colorblindness which is when one of the types of cones are missing or mutated. What you might not know is that there are also people with more types of cones - 4 types that we're aware of - and we have no idea how they perceive the world.
So what does this have to do with black. Well one theory on the tetrachromat person that has and can make use of the 4 cones is that it improves dimly lit colors.
But we don't know.. How does cDa29 see the world? She was unable to communicate her experience to the researchers in much the same way as it is impossible to describe the experience of red to a dichromatic person. I would love to see that. So when is black The only time that we are positive black is black is when it lacks all light.
Any other time and its hard to say. Even among regular vision fatigue, the surrounding environment, old age can all diminish the ability to perceive Hue within a dark environment. For those discussing the LAB color space this is the so-called conundrum. A forest so dark that its difficult to impossible to tell if its an intensely dark green or actual black. Most would say no. But then again when we're so used to light being present, perhaps removing it all is a feeling.
I've been in an unlit cave where you get as close to black as possible - it is a strange feeling. I'm not sure that qualifies though. I wouldn't call it such. It certainly doesn't help you differentiate objects. Black is absolutely a lack of color. Color is a stimulus upon the retinas, black is when there is no stimulus. In practical application: This is pretty irrelevant.
Language is for understanding each other and most don't know or care enough to distinguish such intricacies. As long as you know what you're talking about and others know what you're talking about the rest is irrelevant. When you need to get into technical things such as philosophy and physics than it becomes important.
In photography not so much. Yes and no. Like I said most of the time our English and assumptions of the world take over and most of the time are right. You're basing it on your own prior knowledge and perception of redness, blueness, and blackness. I'm reminded of going to a suit store and the guy swearing to me the suit was black while my years of experience in color told me it had blue in it.
Was I right or was he? I am more right but for most purposes he can still call it black and its understood as such. But it absolutely had blue in it. In fact let's see an image:. All of these were sampled from a single photo of guys in suits. If I ask you to hand me the black one or black ones would you easily be able to? I doubt it. This is why a suit is more expensive than individual sports coats and slacks. A suit must be sold together made of the exact same piece and segment of fabric in order to match.
A black sports coat from one shop and black slacks from another are likely to be two entirely different "blacks". None of which are pure black. Again, this is a question of semantics and what effect a lack of stimulus has on your vision - if any.
And a philosophical inquiry as to whether we can fully trust our senses. Nearly every theory on color says it doesn't exist outside of the brain processor. I'd encourage anyone interested in this subject to study it.
Here are two wonderful videos all hosted on YouTube at time of posting to get you started:. Visible light is part of the electromagnetic spectrum, our eyes can perceive only a small fraction of this spectrum, from black to white Our eyes can differentiate colors when there is the right amount of light, on very poor light conditions our eyes perceive only a shade of gray colors, this is because of our anatomy:.
While using a small telescope to watch far away objects, you'll see this objects as "black and white" or "gray" but this is mainly because you are receiving a poor quantity of light, using a big telescope can give you more light and more colorful images, astronomy enthusiast on a small budget use long exposure photography to capture more light and have more colorful images, al this examples show that black is the perception of low light or not light at all.
Since in photography black is never the absolute black, I would say that for purposes of us photographers and color management enthusiasts, the black is a color.
If you think black is not a color, remove it from your vocabulary when speaking about photography and color management and see what happens Black is the only shade for which you can absolutely say that it is a "lack of color", cultural or colloquial considerations aside. Even white is made up of colored light, so comprises colors, but black is the absence of any light.
Simple answer: Light is color. Without light, no color. The brighter the light the stronger the color. Cameras photograph black when no light reaches the sensor. Sign up to join this community. The best answers are voted up and rise to the top. If you relish our content, please purloin us to your adblocker's whitelist. We'd really appreciated it. By Pauline De Leon Jul 14, Read Full Article.
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