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Topic: CMYK color model

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In the News (Wed 20 Mar 19)

  CMYK color model - Biocrawler   (Site not responding. Last check: 2007-10-13)
CMYK (or sometimes YMCK) is a subtractive color model used in color printing.
Because the 'fl' generated by mixing the subtractive primaries is not as dense as that of a genuine fl ink (one that absorbs throughout the visible spectrum), four-color printing uses fl ink in addition to the subtractive primaries yellow, magenta, and cyan.
However the color a person sees on a computer screen is often slightly different from the color of the same object on a printout since CMYK and the RGB color model used in computer monitors have different gamuts.
www.biocrawler.com /encyclopedia/CMYK   (587 words)

 sfd Index
The CMYK color model is a subtractive color model.
CMYK colors are represented as percentages that correspond to the four ink colors.
The RGB color model is an additive color model.
www.cas.umt.edu /sfdindex/print.htm   (686 words)

 Color - Gurupedia   (Site not responding. Last check: 2007-10-13)
A color model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components.
When producing a color print or painting a surface, the applied paint changes the surface; if the surface is then illuminated with white light (which consists of equal intensities of all visible wavelengths), the reflected light will have a spectrum corresponding to the desired color.
Note that the color experience of a given light mixture may vary with absolute luminosity, due to the fact that both rods and cones are active at once in the eye, with each having different color curves, and rods taking over gradually from cones as the brightness of the scene is reduced.
www.gurupedia.com /c/co/color.htm   (3740 words)

 Color Management Tutorial, Color Models
There are device dependent color spaces like RGB (red, green, blue), which is the color model utilized by the monitor you are viewing this from and CMYK (cyan, magenta, yellow and fl) the model used for ink on paper or other materials.
Created in 1976 this is a refined color model based on the original CIE XYZ model developed in 1931 by the International Committee on Illumination or la Commission Internationale de l' Eclairage, the French translation.
CIELAB is based on a three dimensional model of color that includes the three primaries, L*, a* and b* (pronounced, L star, a star and b star).
www.rit.edu /~med2823/colormanageproject/colortheory4.html   (935 words)

 Graphics Color Models
Since a color model has a particular range of available color or gamut, it is referred to as using a "color space".
The CMYK model forms its gamut from the primary subtractive colors of cyan, magenta and yellow.
In the CMYK color model, colors are represented as percentages of cyan, magenta, yellow and fl.
www.sketchpad.net /basics4.htm   (1227 words)

 RGB and CMYK Color
Establishing a color scheme helps give each page the same look and feel, regardless of content, and lets your audience know they are still within the same site.
The RGB color model is typically used when dealing with color viewed on a computer monitor.
The CMYK color model, on the other hand, is used on print material when printing in full color.
www.adobe.com /education/webtech/CS/unit_graphics1/cb_rgb_color_id.htm   (305 words)

 Color models - Wikipedia, the free encyclopedia
A color model or colour model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components.
In practice, the human color receptors will be saturated or even be damaged at extremely-high light intensities, but such behavior is not part of the CIE color space and neither is the changing color perception at low light levels (see: Kruithof curve).
The cross-section of the cylinder is a color wheel, but instead of pure spectral colors, the edge consists of additive mixtures of red, green, and blue.
en.wikipedia.org /wiki/Color_model   (1869 words)

 Your Online Manufacturers Color Database (Powered by CBN Systems Technology)   (Site not responding. Last check: 2007-10-13)
Indexed color is the provision of a relatively small number of discrete colors (often 256) in a colormap or palette.
The LAB Color Model is based on the original color model proposed by the Commission Internationale d'Eclairage (CIE) in 1931 as an international standard for color measurement.
LAB Color is designed to be device independent -- that is, it creates consistent color regardless of the specific device, such as the monitor, printer, or computer, that you use to create or output the image.
www.colorcharts.org /ccorg/html/colorbasic.aspx   (1214 words)

 Color Models - Digital Media - MIS 4710 at University of Oklahoma
In the 24-bit RGB color model there are 256 variations for each of the additive colors of red, green and blue.
In the RGB color model, colors are represented by varying intensities of red, green and blue light.
The CMYK printing method is also known as "four-color process" or simply "process" color because in the CMYK color model colors are represented as percentages of cyan, magenta, yellow and fl.
www.ou.edu /class/digitalmedia/articles/Color_Models.htm   (615 words)

 Printing Orienteering Maps with a 4-color (CMYK) printing process
In spot color printing, the map image is built up very deliberately from discreet colored inks: fl for culture and rock, brown for landforms, blue for water, etc. Where one color interacts with another on a spot color printed map, the two inks simply add together to produce a darker color.
When an image is converted into composite color, all the colors in the image are simulated in some standard color model, by combining varying amounts of the component colors for that model.
Color is used to enhance symbolic differences, and to group symbol classes thematically, but is not the primary symbolic variable.
www.pdcarto.com /orienteering/spot2cmyktutorial/CMYKOMaps.htm   (1751 words)

 [No title]   (Site not responding. Last check: 2007-10-13)
The CMYK color model is used primarily as an output format on color printers.
Operator images generally inherit their color model from their input images, while other image types compute a default color model based on the number of channels in the image.
If the default color model needs to changed, this may be accomplished with the setColorModel() function defined by the ilImage base class.
www.sgi.com /products/software/imagevision/man/man3/ilCMYKImg.html   (341 words)

 Model color space CMY and CMYK   (Site not responding. Last check: 2007-10-13)
The consideration with use of the model RGB are good for the appliances, which emit a light, but in the circumstances related to presentation of the picture on passive carriers (printing) direct use of the description of points from the model RGB is not possible.
The components of color which have been emerged from such a difference are called CMY letters, because from the analysis in natural manner result basic colors and they are located on a axis of length of waves between basic colors from basic RGB model.
Such color can be fl more or less at the very most, because it is practically impossible to fabricate a mixture for fl color using three other colors from CMY set.This fact is often explained as a "dirtiness " of CMY components but it is not a truth in all respects.
semmix.pl /color/models/emo14.htm   (619 words)

 Dixie College - Visual Technologies
Color is one of the most versatile tools in the designer's toolbox, and the one which is continually misapplied by people with no design background.
When all three primary colors are combined they create white and are thus called additive colors because they depend on the projection of light as in the three RGB phosphor guns in a computer monitor or a television.
While RGB color depends on light transmission for its additive color scheme, the CMYK model is based upon the light-absorbing qualities of ink and paper.
cit.dixie.edu /vt/reading/color.asp   (921 words)

 KEPCIL - Colour Models !
Color model is chosen according to the preferred output method used, i.e.., on-screen display or printable media.
In the HSB model, color is defined by three components: hue, saturation, and brightness.
In the HSB color model, Hue (H) is expressed as a degree of rotation on a circular color wheel.
keppanet.netfirms.com /keppanet/painting/colormod.htm   (851 words)

 Color Management: Color Models, Color Spaces and Color Profiles - Photo Tips @ Earthbound Light
A typical color in RGB is represented by three numbers between 0 and 255, one for each of the red, green and blue components of the color.
Thus, a color space differs from a color model in that it maps specific values to specific colors while a color model only determines that the values will be the red, green and blue components (or whatever) without saying how much of any given component is needed to get what specific result.
It does this by mapping colors in the color space it represents to colors in an internal color space (usually CIE LAB or CIE XYZ but this is beyond the scope of this article) used by the Color Management System (CMS) embedded in your operating system or other software.
www.earthboundlight.com /phototips/color-models-spaces-profiles.html   (1205 words)

 Tennant Printing Services - Color
In print media, documents are printed using either the CMYK color model, spot colors, or a combination of both.
CMYK is the color model used for full-color (also called 4-color) printing and is what has been used whenever you see printed photographs, magazines, color brochures etc. CMYK refers to the inks used in 4-color printing: cyan (C), magenta (M), yellow (Y), and fl (K).
PMS colors are inks that are custom mixed according to a published PMS formula which guarantees that the spot color will always turn out the same.
www.tennantprinting.com /color.html   (252 words)

 Color Depth - Graphics
CMYK images are derived from the 3 primary colors of cyan, magenta and yellow plus fl.
Images which do not define colors in terms of their actual RGB or CMYK values and which derive its colors from a "palette" are known as "Indexed Color".
This type of color is known as "Indexed Color" because colors in the palette are referenced by index numbers which are used by the computer to identify each color.
www.sketchpad.net /basics6.htm   (1200 words)

 MacDermid ColorSpan Inc. - High resolution large format and wide format inkjet color printers.
Lab is a theoretical color model that describes color in three planes: L, a, and b.
This color model is not tied to any display/output device, as is the case with RGB and CMYK.
This color model is consequently considered a 'device-independent' color model, and does not carry with it the inherent gamut limitations of monitors or printers.
www.colorspan.com /support/tutorials/cmpl/lab.asp   (152 words)

 Color Principles - Hue, Saturation, and Value
Colors are described with three components: luminance or lightness (L) and two chromatic components, one of which ranges from green to red (a), the other from blue to yellow (b).
This color is the complement of the primary.
Not surprisingly, colors close to each other in the HSV color model (or any of the other models discussed) are hard to distinguish from each other.
www.ncsu.edu /scivis/lessons/colormodels/color_models2.html   (4181 words)

 Why does it look so different?   (Site not responding. Last check: 2007-10-13)
The color model we use depends upon which form of light (emitted or reflected) that we are dealing with.
The RGB color model is an additive model.
Unlike the RGB and CMYK models, the PMS system, does not try to create as many colors as possible, but instead, has a strict subset which can be found in their swatchbooks.
www.hipshot.com /why.html   (826 words)

For the CMYK model, suggested values for shadow areas are 70% cyan, 60% each for magenta and yellow, and 90% for the fl channel.
In practice, it turns out that, "if the CMYK color model shows a bit more cyan than yellow or magenta in the neutral midtones, the color will print more neutral." Generally speaking, if your midtones are correct, the remainder of the image will look correct.
Brightness in the RGB color model may be adjusted by changing the setting of the middle slider, working on all channels at the same time.
www.apogeephoto.com /june2000/color_correction.shtml   (1526 words)

 Canfield Studios -- Articles: Fluid Fountain Fills
A frequent occurrence with fountain fills, using a CMYK color model, is that gradients from fl to a color (or custom gradients when a transition from fl to a color is used) appear “washed out” in the mid ranges when outputting to either a CMYK color output device, or when creating CMYK separations.
These particular colors (fl and green) may easily be specified from the provided color palette with your gradient tool, but if you examine the actual CMYK components of the fl end of the gradient, you’ll find there is neither a Cyan nor Yellow component at all.
The key in specifying fl-to-color gradients (or gray to color, for that matter) for CMYK color output or CMYK separations is to include the full value of the color end of your fountain fill in the fl end, to provide a full saturation of color along the full span of the gradient.
www.byronc.com /art_fluidfills.shtml   (593 words)

 What Is Color?   (Site not responding. Last check: 2007-10-13)
The CMYK color model is a subtractive model used for printing on printing presses and many color computer printers.
When the three primary colors, cyan, magenta, and yellow, are combined together they do not produce a rich fl, so fl ink is added as a fourth color.
To create CMYK colors on the computer you must specify percentages of the primary colors.
www.devx.com /projectcool/Article/19954/1763/page/8   (211 words)

 [No title]
The color extensions include cyan-magenta-yellow-fl (CMYK) color model, fl generation and undercolor removal functions, screen and transfer functions for four separate color components, and a colorimage operator for rendering color sampled images.
The color extensions are currently found in PostScript color printers from Canon, QMS, Oce, and NEC as well as all implementations of the Display PostScript system.
The following special color spaces are standard: The Pattern color space enables painting with a "color" defined as a pattern, a graphical figure used repeatedly to cover the areas that are to be painted.
www.textfiles.com /programming/FORMATS/level2.inf   (4142 words)

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