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Topic: Subtractive color

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The colors look different, because different amounts of the colors in the white light are subtracted out of it by the paint.
All or most of the colors that are in the mixture of white sunlight are reflected by the white paint, so it looks the same color as the sunlight.
So there is a direct connection between the three subtractive primary colors of inks and dyes, and the three additive primary colors of color light.
home.att.net /~RTRUSCIO/SUBCOLOR.htm   (642 words)

  Subtractive color - Wikipedia, the free encyclopedia
Color is not an absolute, but depends on the details of human color vision, which varies between individuals.
In color printing, the primary inks used are cyan, magenta, and yellow.
CMYK is therefore an example of a subtractive color space, or rather a whole range of color spaces, since inks can vary, and the effect of the inks depends on the paper used.
en.wikipedia.org /wiki/Subtractive_color   (715 words)

 Puss Reboots: Tutorial: Subtractive Color / CMYK
As subtractive colors are mixed together, they eventually result in fl (in practice, it's actually a very dark gray or dark brown).
In the subtractive color scheme, as colors are mixed together, they should eventually result in fl.
Mixing a primary color with it's compliment (that's the secondary color directly across the wheel from it) should make fl because a the secondary color has the other two primary colors.
www.pussreboots.pair.com /tutorial/colorwheel/color_lesson1.html   (398 words)

 RGB World - Understanding Color
Where the blue and green spotlights overlap, the color cyan is produced; where the blue and red spotlights overlap, the color magenta is produced; where the red and green spotlights overlap the color yellow is produced.
A red apple is a good example of subtractive color; the apple really has no color; it has no light energy of its own, it merely reflects the wavelengths of white light that cause us to see red and absorbs most of the other wavelengths which evokes the sensation of red.
Subtractive color starts with an object (often a substrate such as paper or canvas) that reflects light and uses colorants (such as pigments or dyes) to subtract portions of the white light illuminating an object to produce other colors.
www.rgbworld.com /color.html   (1253 words)

 Splash of Color - Gretag Macbeth
Subtractive color mixing is used in the printing industry.
Colorant is a generic term used to denote a color pigment or dye.
Adding light to the test color was considered the equivalent of subtracting it from the other two primaries, resulting in the test color being described by a combination of positive and negative tristimulus values.
www.splashofcolor.com /products/gretag/pm5_publish/faq.html   (1871 words)

 Primary color - Wikipedia, the free encyclopedia
A primary color is a color that cannot be created by mixing other colors in the gamut of a given color space.
Primary colors may themselves be mixed to produce most of the colors in a given color space: mixing two primary colors produces what is generally called a secondary color, mixing a secondary with a primary produces what is sometimes called a tertiary color.
Media that use reflected light and colorants to produce colors are using the subtractive color method of color mixing.
en.wikipedia.org /wiki/Subtractive_primary_color   (969 words)

 Television Production: Principles of Color
Therefore, in color television only three colors (red, green and blue) are needed to produce the full range of colors in a color TV picture.
Since white is the presence of all colors, the camera's chips or imaging devices respond to pure white as the simultaneous presence of all three colors.
After the color image from the lens activates points on the mosaic that respond to the red, blue, and green points, the CCD electronic circuit is able to separate each of the three colors and send them on their way as three separate electronic signals.
www.cybercollege.com /tvp015.htm   (1982 words)

 Subtractive Color System   (Site not responding. Last check: 2007-10-21)
When we mix colors using paint, or through the printing process, we are using the subtractive color method.
Subtractive color mixing means that one begins with white and ends with fl; as one adds color, the result gets darker and tends to fl.
In subtractive color, red, yellow and blue are the 3 basic primary colors.
facweb.cs.depaul.edu /sgrais/color_subtractive.htm   (134 words)

 Sanford & A Lifetime of Color: Study Art   (Site not responding. Last check: 2007-10-21)
Primary, secondary, and intermediate colors are organized on a circular chart.
Color wheels are based on color theory, which is based on the physics of light.
Subtractive color refers to the mixing of colors of pigment, such as paint or the ink in your computer's printer.
www.sanford-artedventures.com /study/g_color_wheel.html   (228 words)

 Olympus Microscopy Resource Center: Physics of Light and Color - Primary Subtractive Colors: Interactive Java Tutorial
The complementary colors (cyan, yellow, and magenta) are also commonly referred to as the primary subtractive colors because each can be formed by subtracting one of the primary additives (red, green, and blue) from white light.
The color observed by subtracting a primary color from white light results because the brain adds together the colors that are left to produce the respective complementary or subtractive color.
When all three primary subtractive colors are added, the three primary additive colors are removed from white light, leaving fl (the absence of any color).
www.olympusmicro.com /primer/java/primarycolors/subtractiveprimaries/index.html   (441 words)

 Design Notes: Color Wheel
A color wheel is based on a circle that joins the ends of the spectrum and is helpful as a guide to mixing colors.
The secondary colors are named red, green and blue and are the primary colors of the additive or light color theory (called RGB colors).
Color can not be used as a background because it would effect the colors in the color wheel too much.
daphne.palomar.edu /design/cwheel.html   (1464 words)

 Early Color Motion Picture Processes   (Site not responding. Last check: 2007-10-21)
Subtractive systems use multi-layered colored dyes to reconstruct the spectrum on the film and then white light projects through the image onto the screen.
The screen image appears in color by means of a color wheel rotating in sync with the film, or the use of individual dye stains of the appropriate color on each frame.
To record the full color spectrum that is visible to the human eye, we need to record the three primary color components, which are red, blue, and green.
www.widescreenmuseum.com /oldcolor/additive-subtractive.htm   (1599 words)

Colored light does not mix to produce the same colors as colorants such as paint, dyes, and inks.
This kind of color mixing is used in stage lighting, where any color of lights may be chosen.
The three primary colors are the minimum number of colors that can be mixed to make the greatest number of other colors.
home.att.net /~RTRUSCIO/COLORSYS.htm   (327 words)

 Light and Color @ The Franklin Institute
The color of anything depends on the type of light sent to our eyes; light is necessary if we are to have any perception of color at all.
Color complements are on opposite ends of the color wheel; they also happen to have drastically different wavelengths.
Since color depends on the light that we see, if some, all, or none of that light is blocked, some, all, or none of the colors will be changed.
www.fi.edu /color/index.html   (1879 words)

 handprint : additive & subtractive color mixing
Let's examine these color mixing demonstrations further, as they are probably the main reason why artists believe primary colors are "real" colors (that is, colors they can actually see), or that visible primary colors explain all color mixtures, or that primary colors must be only a certain three colors and not any others.
The three colored lights can also be chosen so that their equal mixture produces the most acceptable yellow, cyan and magenta colors, in order to make the relationship between additive and subtractive primaries appear more consistent, dramatic and irrefutable than it actually is — that is, to buttress the credibility of the subtractive mixing theory.
Colors only arise from the effect of light on color receptors, but in subtractive color mixing the complex qualities of material substances are inserted between the light source and the eye.
www.handprint.com /HP/WCL/color5.html   (6966 words)

 Digital Colour Basics
Any color can be spectrally analyzed using a prism to determine its red, green and blue primary values (additive color space), or its cyan, magenta and yellow primary values (subtractive color space).
Painters continue to incorrectly define primary colors as red, yellow and blue according to the color wheel despite the fact that such technologies as offset printing and photography, each almost a century old, are based on a three-dimensional system of color using the true primaries cyan, magenta and yellow.
Color space mappings could be visually represented in three-dimensional space relative to each other, and relative to the theoretical set of visible colors.
www.colorcube.com /articles/basics/basics.htm   (1878 words)

 Color Systems - Subtractive & Additive Color
Additive color mixing begins with fl and ends with white; as more color is added, the result is lighter and tends to white.
The Visible spectrum consists of billions of colors, a monitor can display millions, a high quality printer is only capable of producing thousands, and older computer systems may be limited to 216 cross-platform colors.
Although a monitor may be able to display 'true color' (16,000,000 colors), millions of these colors are outside of the spectrum available to printers.
www.worqx.com /color/color_systems.htm   (354 words)

 handprint : mixing with a color wheel
The easiest way to understand color mixing with a color wheel is through the study of saturation costs — the reduction in the hue purity (chroma or saturation) that results from the mixture of two or more colors.
Newton's color circle was adapted to describe paint mixtures in the early 18th century, at a time when the differences between additive and subtractive color mixing were either unknown or only vaguely recognized.
Increasing the color wheel or hue circle distance between two paints increases the saturation cost or dullness in their midpoint mixtures, and within the "primary" triad or split "primary" frameworks this effect is most pronounced in orange, purple and green colors.
www.handprint.com /HP/WCL/color14.html   (6053 words)

 Kyoto Color 97
Color circles or color triangles are graphic vehicles used to organize colors.
I created radial gradations of red, green, blue, cyan, magenta and yellow in which the diameter corresponded to the value of the color and the placement of the resulting circle was determined by the value on the Y axis and the hue on the X axis.
A color that is 30% red 59% green and 11% blue has an underlying hue of 101° green, close to the hue of chlorophyll.
www.csulb.edu /~percept/kyotocolor.html   (2058 words)

 Color Matters - The Amazing Science of Color
Colors generated by light are part of one color system.
The tangible colors which are on the surface of objects or on the printed page are another color system.
In subtractive color theory, all colors mix to yield fl.
www.colormatters.com /rgb.html   (423 words)

 Canfield Studios -- Articles: Color Primer "In Living Color"
The color wheel, as is typically used to illustrate the HSB model represents a cross-section of this cylinder.
Another important aspect of transmitted and reflected light is that an object absorbs the color of light that is the spectrum opposite of the color you perceive the object to be, as shown in Figure 11.
Choke — Used to trap a darker colored foreground object on a light background; the lighter background color is spread inward to overlap the darker foreground color.
www.byronc.com /art_color.shtml   (4678 words)

 Color Math
We have stated that all of the colors captured within a color space are functions of the primaries cyan, magenta and yellow.
Remembering that each Color Bar is standardized to a single set length, we are able to add these fixed amounts together in order to determine the configuration of their sum.
Grasping the need to calibrate all color combinations to a fixed amount is important because this normalization process allows us to estimate the colors with which we are dealing using the cube diagrams in the previous section.
www.colorcube.com /articles/math/math.htm   (2918 words)

 Additive/Subtractive Color - Ian-Albert.com
Subtractive color is what happens when you mix paint, print a picture, or highlight a word on a page.
Something else you may notice is that cyan, magenta, and yellow are the colors of the ink in your color printer.
Cover each flashlight lens with a different color of film and experiment with shining combinations of the three lights on the same spot on a white wall.
ian-albert.com /graphics/addsubcolor.php   (598 words)

 The Painting Guide - Color wheels
This color wheel is based on a triadic mixture of pigments with red, yellow, and blue as the primary triad.
In color films, such as Kodacolor, the dyes used in the film negatives are complementary to the colors printed on the paper positive.
The primary and secondary colors in the CMY subtractive color wheel and the RGB additive color wheel are the same.
homepages.ius.edu /DCLEM/ptgguide/ptggd7.htm   (742 words)

 Subtractive and Additive Color Mixing   (Site not responding. Last check: 2007-10-21)
If one take two differently colored beams of light and projects them on to a screen, the mixing of these lights occurs according to the principle of additive color mixing.
Select color mixing to see a demonstration of additive and subtractive color mixing.
Select trichromatic color mixing to see what happens when red, green and blue lights are mixed.
www.yorku.ca /eye/colormix.htm   (87 words)

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