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> Hue, saturation, and value are statements about human perception, not about the physical characteristics of light Color in general is a statement about human

> Hue, saturation, and value are statements about human perception, not about the physical characteristics of light Color in general is a statement about human perception, not physical characteristics of light. As Newton said, “the rays are not colored”. Hue, chroma, and value are human-perceptual color attributes. They vary based on spatial and temporal context, and vary from observer to observer. But people should not use the HSV color model (or your favorite image editor’s color picker) for this kind of analysis. It is a garbage tool for just about every purpose, but especially for this one. Munsell’s model, which is much more perceptually uniform, or e.g. the World Color Survey chart based on it https://www1.icsi.berkeley.edu/wcs/images/jrus-20100531/wcs-chart-4x.png https://www1.icsi.berkeley.edu/wcs/images/jrus-20100531/wcs-... are much clearer.

thaumasiotes 4y ago
> Color in general is a statement about human perception, not physical characteristics of light. As Newton said, “the rays are not colored”. The color is fully and solely determined by the wavelength of the light, and the wavelength is an objective physical phenomenon; it is not crazy to talk about the objective realities of color. But yes, it's full of pitfalls.
- jacobolus 4y ago
  > color is fully and solely determined by the wavelength of the light The incorrectness of this assertion is pretty much the first (and most fundamental) thing you will find in any book about color science. Then the rest of the book is spent elaborating about why this statement is false and explaining the technical details. If you want a definitive definition of color, you can find one in the CIE’s International Lighting Vocabulary. But here is Mark Fairchild of the Munsell Color Science Laboratory at RIT, one of the world’s leading color scientists: http://markfairchild.org/WhyIsColor/Questions/1-1.html http://markfairchild.org/WhyIsColor/Questions/1-1.html > Our eyes sense the light from the world around us and start the process of seeing color. You might think the light on these eyes is colored, but really it is your very own eyes and brain that are creating that color from the light coming from this picture. > Color is a human perception. > We see color because our eyes and brains respond to light present in the world around us. That light comes from light sources such as the sun, light bulbs, or even televisions. Sometimes that light interacts with objects before reaching our eyes and the objects allow more or less of the different types of light to reach our eyes. This makes different things look different colors. > Color is part of our sense of vision. It is similar to how we respond to other aspects of the world with our other senses such as taste, hearing, touch, and smell.

thaumasiotes 4y ago

> Color in general is a statement about human perception, not physical characteristics of light. As Newton said, “the rays are not colored”. The color is fully and solely determined by the wavelength of the light, and the wavelength is an objective physical phenomenon; it is not crazy to talk about the objective realities of color. But yes, it's full of pitfalls.

jacobolus 4y ago
> color is fully and solely determined by the wavelength of the light The incorrectness of this assertion is pretty much the first (and most fundamental) thing you will find in any book about color science. Then the rest of the book is spent elaborating about why this statement is false and explaining the technical details. If you want a definitive definition of color, you can find one in the CIE’s International Lighting Vocabulary. But here is Mark Fairchild of the Munsell Color Science Laboratory at RIT, one of the world’s leading color scientists: http://markfairchild.org/WhyIsColor/Questions/1-1.html http://markfairchild.org/WhyIsColor/Questions/1-1.html > Our eyes sense the light from the world around us and start the process of seeing color. You might think the light on these eyes is colored, but really it is your very own eyes and brain that are creating that color from the light coming from this picture. > Color is a human perception. > We see color because our eyes and brains respond to light present in the world around us. That light comes from light sources such as the sun, light bulbs, or even televisions. Sometimes that light interacts with objects before reaching our eyes and the objects allow more or less of the different types of light to reach our eyes. This makes different things look different colors. > Color is part of our sense of vision. It is similar to how we respond to other aspects of the world with our other senses such as taste, hearing, touch, and smell.