What is saturation in terms of wavelength?

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SUMMARY

The discussion centers on the concept of color saturation in relation to wavelengths and the potential for non-electronic devices to enhance visual saturation. Participants explore the idea of using materials that amplify light intensity without altering the proportionality of wavelengths, emphasizing that increased brightness does not equate to increased saturation. Suggestions include obtaining separate RGB images and manipulating luminance signals to enhance saturation. The conversation also touches on the psychological effects of color perception in overcast environments.

PREREQUISITES
  • Understanding of color theory and saturation
  • Knowledge of light wavelengths and their properties
  • Familiarity with image processing techniques
  • Basic principles of optics and light amplification
NEXT STEPS
  • Research materials that can amplify light intensity, such as photonic crystals
  • Learn about RGB image processing and luminance signal manipulation
  • Explore optical devices that affect color perception, such as color filters
  • Investigate psychological studies on color perception in different environments
USEFUL FOR

This discussion is beneficial for optical engineers, photographers, color theorists, and anyone interested in the intersection of light physics and visual perception.

1832vin
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could it be possible, to make a, for example, and lens that has a special texture, or colour and putting it on would make the pictures more saturated?
or maybe make a pair of glasses for people who can't produce as much cones as others?

my questions is because i can't really think of it, but what is colour saturation in terms of wavelengths, and is there a way to increase it in real life

no monitors or anything electronic(electric is fine), just physics
i'm interested
 
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You would need a material which can amplify the intensity of light while it is passing through the material, before the light travels onward to be received by the eye.
A fascinating idea, but I think highly improbable material.
It would need to be supplied with an external power source since it is effectively acting as a power amplifier.
 
rootone said:
You would need a material which can amplify the intensity of light while it is passing through the material, before the light travels onward to be received by the eye.
A fascinating idea, but I think highly improbable material.
It would need to be supplied with an external power source since it is effectively acting as a power amplifier.
i have thought of that, and therefore i said "not electronic (but electric is fine)" but, i thought increasing the intensity of the light just changes the brightness of the image...

and that just makes everything look whiter, which is an opposite to increasing the saturation...
 
More light intensity equally across the spectrum would certainly result in the perception of everything seeming brighter.
However, the light at every wavelength would still be proportionally the same as before going through the device.
Red objects still would still be seen as red, and distinct from blue objects, though both red and blue objects would appear brighter.
Increased brightness would not result in both red and blue objects tending to become white, that would require additional wavelengths being mixed into the original light.
 
rootone said:
More light intensity equally across the spectrum would certainly result in the perception of everything seeming brighter.
However, the light at every wavelength would still be proportionally the same as before going through the device.
Red objects still would still be seen as red, and distinct from blue objects, though both red and blue objects would appear brighter.
Increased brightness would not result in both red and blue objects tending to become white, that would require additional wavelengths being mixed into the original light.
rootone said:
More light intensity equally across the spectrum would certainly result in the perception of everything seeming brighter.
However, the light at every wavelength would still be proportionally the same as before going through the device.
Red objects still would still be seen as red, and distinct from blue objects, though both red and blue objects would appear brighter.
Increased brightness would not result in both red and blue objects tending to become white, that would require additional wavelengths being mixed into the original light.
I think you would need to obtain separate RGB pictures first, then create a luminance signal by adding them in fixed proportions. Then to increase saturation, this luminance signal must be subtracted from the original image, presumably by out-phasing. Subtracting images used to be done in photography by placing a negative over a positive, and enabled image processing, such as edge crispening, to be obtained. So you could perhaps place a weak black and white negative over a full colour positive.
 
tech99 said:
I think you would need to obtain separate RGB pictures first, then create a luminance signal by adding them in fixed proportions. Then to increase saturation, this luminance signal must be subtracted from the original image, presumably by out-phasing. Subtracting images used to be done in photography by placing a negative over a positive, and enabled image processing, such as edge crispening, to be obtained. So you could perhaps place a weak black and white negative over a full colour positive.

actually, the reason i wanted to ask, was to see if "saturationg contacts/glasses" would exist in the world, where you wear them, and things are simply more saturated, and look better
 
So everything looks like the photos in glossy celebrity gossip magazines.
Think I'll pass on that one.
 
Last edited:
rootone said:
So everything looks like the photos in glossy celebrity gossip magazines.
Think I'll pass on that one.
as in, there are places in the world that are most of the time having overcast (namingly england), and as such, it's all gloomy, colours are tony grey, psychologically bad, so, here we add some lens, and it cheers you up

or just plain, easier version of dark vision, turn up the saturation
 
Or move to Portugal.
 
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  • #10
1832vin said:
and therefore i said "not electronic (but electric is fine)"
that's a nice contradiction ... by definition anything electronic = electric
 
  • #11
Come to think of it, I think I remember reading about some kind of specs that had this kind of physiological effect. But I can't remember what it was called, or where I found it. I don't think it actually made colors more saturated. Just felt that way, for some colors.
 
  • #12
I like weed too, but it's not this is not that kind of forum.
 
  • #13
davenn said:
that's a nice contradiction ... by definition anything electronic = electric

electronic is more of a sub-set of electric things,

ie, a solenoid is electric, but it is not electronic, but a IC controlled oscillation electromagnet is electronic
you get it? electronic=electric, but electric not equals to electronic
 
  • #14
1832vin said:
ie, a solenoid is electric, but it is not electronic

its an electronic device !stop fooling yourself and be prepared to learn some real information
There's a lot of outstanding guys on this forum that have been at electronics for many years

listen to them and learn some real world stuffDave
 

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