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Topic: Color separations

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	color separations : CMYK : trapping & traps separating colors : QuarkXpess Pagemaker InDesign Illustrator
		What is Color Separation and How to Separate Colors for Print - To make sure that the color separations are correct, during the prepress stage designers should print color separations on their desktop printer to insure colors will separate properly once sent to a commercial printer.
		Color Separation for Printing - Creating color separations is a process that depends on a number of factors, from the source image, to the paper and the inks used, and all the steps in between.
		Color Separations and Duotones - View the PDF version of this file: Brochure.PDF This is a "Brochure" which is designed to be printed on the front and back of a piece of paper, then folded in half, like a book.
	www.allgraphicdesign.com /colorseparations.html (1149 words)

	Bryan A. Smith: Graphic Comm II: Color Separations and Duotones (Site not responding. Last check: )
		Color separations are used by major printing companies to reproduce the color images inside magazines, books, brochures, etc. Typical color separations consist of four colors: cyan, magenta, yellow, and fl, or CMYK for short.
		Color separations used to be performed in the darkroom, using expensive and tedious processes.
		Color filters are used to ‘separate’ the colors of the photograph into the CMYK colors.
	teched.vt.edu /ElectronicPortfolios/SmithB.wbp/html/gc2work/ColorSeparation.html (717 words)

	International Paper - Color Printing
		Spot colors can be used as an area of emphasis on a four-color process job with the spot color generally printed as a color on a separate plate and not as part of the four-color process.
		Color separations created from photographic methods are used to prepare analog plates for traditional printing methods.
		Color separations can also be produced from digitally produced images, such as from a digital camera or images composed entirely in design or illustration software on a computer.
	glossary.ippaper.com /?req=knowledge/article/13&catitemid=6 (3124 words)

	ScreenWeb \| The Road to Success is Paved with Good Separations
		Separation software runs the gamut, from inexpensive plug-ins that eliminate much of the grunt work in image separation to more pricey systems that provide extensive control of all facets of the separation process.
		The main attraction of separation software--particularly the programs aimed at novice screen printers--is that it performs its routines in the background, which means the user isn't always bogged down by menus or stuck responding to endless "Are you sure?" prompts.
		Separation programs let users select the number of color channels into which a design will be separated, up to the maximum number of channels supported by the product (generally around 12-18 colors).
	www.screenweb.com /prepress/cont/goodseparations.html (3447 words)

	Patent 4583116: Method and apparatus for eliminating defects in images in polychromatic printing due to faulty ... (Site not responding. Last check: )
		The coefficients memory 20 supplies the coefficient a.sub.1, a.sub.2, a.sub.3 and a.sub.4 to the multiplier 19 for the color separation signals Y, M, C and K of the two image points and the multiplier multiplies the color separation signals with the coefficients and the results are stored in the memory 21.
		Thus, the color separation signal of the darker color which is the largest or maximum as well as the three other color separation signals of the neighboring point are stored for the contour point and the color separation signals are retained unaltered for the neighboring point.
		If a different overlap direction is used, the color separation signals which corresponds to the contour determining color is assumed in the non-contour determining color separation signal by the contour determining image point and the other color separation signal of this point are retained.
	www.freepatentsonline.com /4583116.html (2384 words)

	Color Separations
		It is good to know, at the least, that each color in your design is printed separately from its own metal plate which is inked with the color you choose.
		Colors sometimes overlap but are usually abutted or set next to each other on the paper.
		Color photographs or full color images are printed with four passes using cyan, magenta, yellow, and fl (cmyk).
	www.bethel.edu /%7Egchase/courselinks/gd/colorseparations.html (747 words)

	A Brief History of Color Separations - Part 1
		It was the job of the separator to interpret the color guides created by the colorist, breaking down the colors on the page into their components of red, yellow and blue.
		The separators were almost all women, often described by editorial folks in New York as “that group of little old ladies.” It was speculated for years that as these women died off, so would the technique.
		Once the color guides were fully “translated” and the acetates were finished, they would be photographed with appropriate screens to create a single version which included the percentage dots and the solid of one color.
	www.silverbulletcomicbooks.com /bobro/96684120072585.htm (1590 words)

	Endsley - AltPhoto - Color Seperations
		The basic problems in color separation result in making the switch from the additive system (light color) to the subractive system (pigment color), and in maintaining an accurate color balance.
		To make separations from slides it is highly advisable to shoot a frame including the grey scale within the lighting conditions that the images to be separated will be photographed.
		These colors seem to be reasonably close to the process colors, and more important, produce a fairly good color balance.
	www.artic.edu /~fendsley/altProc_ColorSeps.html (818 words)

	The Complete Guide to Index Color Separations
		The actual separations are like a puzzle: Every area of color in the image is made of small square dots that do not print on top of each other like they do in halftone printing.
		This means that if you choose specific colors from the image to make up the design, you can't eliminate colors or change the amount of a color after you have done the separations.
		If the colors are weak or muted, the index routine tends to mix a lot of fl pixels with colors to mute them down.
	impressionsmag.com /impressions/search/article_display.jsp?vnu_content_id=1001393435&&&&imw=Y (2463 words)

	What is color separation? - A Word Definition From the Webopedia Computer Dictionary
		This type of color separation, mixing three or four colors to produce an infinite variety of colors, is called process color separation.
		Another type of color separation, called spot color separation, is used to separate colors that are not to be mixed.
		You don't need to perform color separation if you are printing directly to a color printer because in this case the printer itself performs the color separation internally.
	www.webopedia.com /TERM/C/color_separation.html (278 words)

	Olympus Microscopy Resource Center: Physics of Light and Color - Color Separation: Interactive Java Tutorial
		White cannot be produced by any combination of the primary subtractive colors, which is the main reason that no mixture of colored paints or inks can be used to print white.
		Each separated component is made into a film that is used to prepare a printing plate for that color.
		The final image is created by sequentially printing each color plate, one on top of another, using the appropriate ink to form a composite that recreates the appearance of the original.
	www.olympusmicro.com /primer/java/primarycolors/colorseparation/index.html (674 words)

	Hanneke's Logowear - Screenprint Color Separations
		Color separation refers to the process where each unique color in the clients artwork is digitally isolated onto separate plates / films in preparation for printing the image onto a product.
		Hannekes' Logowear offers several separation techniques for reproducing artwork which includes 4-color process (cymk), simulated process also know as grayscale separations, index separations, and spot color separations.
		The appropriate number of colors and a separation technique is determined to compliment each unique piece of art.
	www.hannekes.com /2_screenprintseps.html (99 words)

	color separation - Webopedia.com (Site not responding. Last check: )
		Another type of color separation, called spot color separation, is used to separate colors that are not to be mixed.
		Spot colors are effective for highlighting text but they cannot be used to reproduce full-color images.
		You don't need to perform color separation if you are printing directly to a color printer because in this case the printer itself performs the color separation internally.
	drmwatch.webopedia.com /TERM/C/color_separation.html (253 words)

	The Hidden Power of Photoshop CS: Chapter 2: Color Separations. Pt. 1. By Sybex - WebReference.com-
		Not only does learning about separation help you understand what is going on in an image, it also frees you up to use different tools and techniques—because you can apply them to get a more targeted result.
		Good use of separation can give you the opportunity to make selective changes to image areas based on color or tone, and opens the door to advanced manipulations, selections, and calculations using targeted masking.
		Because there is only tone—no color to worry about—it is natural to think that working with tone should be easier than working with color.
	www.webreference.com /graphics/ps1 (834 words)

	Catalog Analysis: Fixed Creative Costs: Color Separations
		Most color separations were done by individual photograph, but to save money, on occasion photos on a page can be “ganged” together, or placed in position and scanned as a full page or even a spread.
		Color “scatters” — the first round of color proofs — are prepared for review by the cataloger.
		Color corrections are suggested at this time, and the color separator makes a second round of proofs.
	bg.catalogagemag.com /ar/marketing_fixed_creative_costs (1313 words)

	Printing color separations from Illustrator
		Scenario: As a designer, you will be required to create color separation proofs to insure that your files are print-ready.
		On a commercial printing press, each color is printed using one ink on one printing plate.
		The two colors needed for the documen, process fl and pantone 161 U are the only colors that will print.
	graphicdesign.spokanefalls.edu /projects/exercises/technology/colorseps.ai/colorseps.htm (266 words)

	creativepro.com - Bit by Bit: Why Your Photoshop Color Separations Are Wrong -- and How to Fix Them
		These experienced craftspeople noticed that the color that came from Photoshop was not as rich as the color produced by their more advanced prepress technologies.
		Separations for sheet-fed printing, made with the correct profiles, are better for the sheet-fed process.
		As better color is very appealing to me, I want to make a proper CMYK color separation for sheet-fed printing.
	www.creativepro.com /story/feature/19347.html (1608 words)

	Color Separations (Site not responding. Last check: )
		In printing, most color images can be reproduced using only four colors of ink or toner: the so-called "process" colors C (cyan), Y (yellow), and M (magenta), plus K (fl).
		Each separation is a record of the C, M, Y, or K information in the original image; and each corresponds to a piece of film, a plate, and a color of ink on the press.
		Separations are produced by photographing or digitally exposing the original image through successive filters of the additive primary colors R (red), G (green), and B (blue).
	www.libordeath.com /nyupage/separations.html (232 words)

	Photo Comp Graphic Communication - Color Separations
		For example, if you have a fl and red brochure, the printer will need a set of negatives with only the fl elements and another set of negatives with only the red elements for printing.
		Every color is a percentage variation of four inks - Cyan, Magenta, Yellow and Black.
		By using the actual negatives, the Matchprint is an accurate representation of how the colors will look when printed.
	www.photocomp.com /color_separations.html (118 words)

	Printing - Color Separations
		All color photographs, and other images that are painted or printed, are produced using just four colored inks or dyes: magenta, cyan, yellow (the subtractive primaries) and fl.
		Color separations are used by major printing companies to reproduce the color When a color separations are created in the darkroom from a color
		Color separations are needed for certain types of common commercial printing done on a printing press.
	www.photoprintingsource.com /color_separations (1430 words)

	Color Separations / Web Flow / RSS+BitTorrent - WebReference Update - 040315
		First, we continue our series on Photoshop CS with a look at color separations.
		The Hidden Power of Photoshop CS: Chapter 2: Color Separations.
		This week, we delve deeper into color separations, looking at Duotones via Spot Color Channels, Creating Duotone Channels, Multipass Printing, How to create a Basic CMY separation, LAB Color, RGBL Hybrid Separation and more.
	www.webreference.com /new/040315.html (397 words)

	Marvin's Corner: Color Separations and Film
		Either there's a fl dot laid down in a given area of 1/2400" x 1/2400", or the area is left blank and clear acetate shows through.
		If there's a question-mark-shaped blob of emulsion on the positive film assigned the color Pantone 285 blue, the final piece will have a Pantone 285 blue question mark of similar shape and size.
		If there's a clear spot on the film for the color magenta in the shape of an exclamation point, the final piece will have a magenta exclamation point of like shape and size.
	marvin.mrtoads.com /color_seps.html (429 words)

	ecspage (Site not responding. Last check: )
		When the process is finished we printed the separations from a fl and white laser printer.
		Color key proofs are made from these and the end results are those above.
		With Photoshop we scanned in the photo (as with the electronic separation) and separated it into two colors.
	www.teched.vt.edu /ElectronicPortfolios/Crocker.ep/Crocker.ep/ecspage.htm (234 words)

	PUB: About Color Separations and Microsoft Publisher
		Color separation is the process of printing a single multicolored page as a series of fl and white sheets.
		There are two ways to color-separate an image: the spot-color separation method and the process-color (or four-color) separation method.
		Spot-color separation breaks a single multicolored page into as many fl and white sheets as are necessary.
	support.microsoft.com /kb/140715 (691 words)

	Patent 4017176: Machine for color reprography, intended for producing color separations of an original
		The exposure device includes an objective so constructed as to concentrate the light reflected by the original onto a photosensitive surface, the sweeping of the original being achieved by virtue of a reciprocating movement of the exposure device relative to the support for the original.
		According to a customary colour reprography process, the colour separation of the original is carried out by recording several images obtained by successive exposures on different photosensitive surfaces, the exposures being made through appropriate filters, and then these images are superposed so as to give a copy of the original by recomposition.
		To obtain colour separations on such machines, different optical filters must be selectively interposed in the path of the light beam during successive sweeps of the original.
	www.freepatentsonline.com /4017176.html (3770 words)

	FAQ: What are color separations? (Site not responding. Last check: )
		A color separation is an image that defines where one specific color will be printed.
		Colors can be mixed by overlapping areas of different color separations, so that one ink is applied on top of the other.
		By combining this technique with halftones, many variations of colors are made possible.
	www.theprinter.com /FAQs/FAQ45.htm (50 words)

	Printing Separations in Color \| Photoshop Articles
		When channels are displayed in color and a single channel is visible, it is displayed in its own color both in the palette and in the image window (upper-right).
		The "separations," individual channels printed in grayscale, are used to make printing plates or screens.
		A separate file is created from each color channel in the image.
	www.webdesign.org /web/photoshop/articles/printing-separations-in-color.5125.html (768 words)

	[No title]
		When we have colors on a document, we have to consider how we are going to SEPARATE those colors onto different plates, so the press can apply the correct colors of ink.
		When the screens are set to different angles, the inks are each able to reflect the color of light they are supposed to, all of which combine in our eye to make us see one color.
		If you are combining a spot color with all four process colors, and screens of all colors overlap somewhere, then 75° won't work either, as it is already in use by Magenta.
	www.techcolor.com /help/separations.html (995 words)

	Adobe - Design Center : Preview color separations on-screen
		To provide an accurate on-screen preview, Acrobat must use color management to convert the colors from the monitor’s color space to the color space of the output device.
		Acrobat uses any color management information embedded in the PDF file first, and then relies on the color management settings in the Preferences dialog box to display or print uncalibrated (device-dependent) colors in a document.
		Under Ink Manager, deselect inks you don't want to print, convert individual spot colors to process by clicking their icons until you see the process color icon, or double-click an ink to edit the frequency and angle for its separation.
	www.adobe.com /designcenter/acrobat/articles/acr6colorsep.html (499 words)

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