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Topic: RGB color space

	RGB color model - Wikipedia, the free encyclopedia
		The RGB color model utilizes the additive model in which red, green, and blue light are combined in various ways to create other colors.
		One common application of the RGB color model is the display of colors on a cathode ray tube, liquid crystal display, or plasma display, such as a television or a computer's monitor.
		Instead, video RGB uses a convention with scaling and offsets such that (16, 16, 16) is fl, (235, 235, 235) is white, etc. For example, these scalings and offsets are used for the digital RGB definition in CCIR 601.
	en.wikipedia.org /wiki/RGB_color_model (1684 words)

	RGB color space - Wikipedia, the free encyclopedia
		RGB is a convenient color model for computer graphics because the human visual system works in a way that is similar - though not quite identical - to an RGB color space.
		As of 2004, sRGB is by far the most commonly used RGB color space, particularly in consumer grade digital cameras, because it is considered adequate for most consumer applications, and its design simplifies previewing on the typical computer display.
		RGB spaces are generally specified by defining three primary colors and a white point.
	en.wikipedia.org /wiki/RGB_color_space (299 words)

	RGB color model (Site not responding. Last check: 2007-11-07)
		The RGB color model is an additive color model in which red, green, and blue light are combined in various ways to create other colors.
		One common application of the RGB color model is the display of colors on a cathode ray tube or liquid crystal display such as a television picture tube or a computer's monitor.
		When written, RGB values in 24 bpp are commonly specified using three integers between 0 and 255, each representing red, green, and blue intensities, in that order.
	www.sciencedaily.com /encyclopedia/rgb_color_model (1066 words)

	Model color space RGB (Site not responding. Last check: 2007-11-07)
		It is usually presented as a fragment of three-dimensional space enclosed in a cube of singular side - as on the illustration (exact to the permutation of co-ordinates).
		The other points, generally a(r,g,b), as vectors with start in the point (0,0,0) represent theoretically the different increase of color, it is said about the different intensity of color* and certainly within the bounds of the singular cube (we write about the intensity of colors further on).
		Model RGB defines in the evident manner that what the intensity is but for the individual components R,G,B. Namely, the values of components RGB describe individually the intensity of the given basic color as a number of partition from 0 to 1 and do not subject this value to the two remaining components.
	semmix.pl /color/models/emo13.htm (642 words)

	WAY-2C Frequently Asked Questions (Site not responding. Last check: 2007-11-07)
		Color is a visual object attribute which results from the combined output of three sets of retinal cones each sensitive to different portions of the visible part of the electromagnetic spectrum.
		A color space is a means of representing the three components of a color in terms of a position in a (usually) three dimensional space.
		RGB, HSI, LAB and CIE are some of the many color spaces which may be used, depending on the particular purpose of the analysis.
	www.way2c.com /w2faq.htm (1571 words)

	RGB color model -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-07)
		Primary colors are related to biological rather than physical concepts, based on the physiological response of the human (The organ of sight) eye to light.
		RGB is a type of (Click link for more info and facts about component video) component video signal used in the (The visible part of a television transmission) video electronics industry.
		Colors used in web design are commonly specified using RGB; see (Click link for more info and facts about web colors) web colors for an explanation of how colors are used in (A set of tags and rules (conforming to SGML) for using them in developing hypertext documents) HTML and related languages.
	www.absoluteastronomy.com /encyclopedia/R/RG/RGB_color_model2.htm (1673 words)

	A Standard Default Color Space for the Internet - sRGB
		The three major factors of this RGB space are the colorimetric RGB definition, the equivalent gamma value of 2.2 and the well-defined viewing conditions, along with a number of secondary details necessary to enable the clear and unambiguous communication of color.
		Color management is a term that describes a technology that translates the colors of an object (images, graphics or text) from their current color space to the color space of the output devices like monitors, printers,...
		Since the image is in a known color space and the profile for that color space would ship with the OS and browser, this enables the end users to enjoy the benefits of color management without the overhead of larger files.
	www.w3.org /Graphics/Color/sRGB (6019 words)

	Adobe RGB color space - Wikipedia, the free encyclopedia
		The Adobe RGB color space is an RGB color space developed by Adobe Systems in 1998.
		It was designed to encompass most of the colors achievable on CMYK color printers, but by using RGB primary colors on a device such as the computer display.
		The Adobe RGB color space encompasses roughly 50% of the visible colors specified by the Lab color space, improving upon the gamut of the sRGB color space primarily in cyan-greens.
	en.wikipedia.org /wiki/Adobe_RGB_color_space (117 words)

	MoreRead.com - XCmyk - CMYK to RGB Calculator with source code - 2003-07-06
		Among the color spaces currently in use, the RGB and CMYK spaces are encountered very frequently: RGB, because it is used in color monitors; and CMYK, because it is used for printing.
		RGB is an additive color space - that is, its three primary colors (red, green, and blue) combine additively to produce any desired colors.
		It is the complement of the RGB color space - cyan, magenta, and yellow are the complements of red, green, and blue, respectively.
	www.moreread.com /it/archives/2003/07/06/31932.shtml (827 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 (1228 words)

	RGB color space : RGB
		The RGB color space is an additive color space which models the way light of a few specific frequencies are combined when travelling in the same direction.
		In particular, the colors which the RGB color space concerns itself with are the red, green and blue frequencies (hence the abbreviation RGB).
		That is, even though a value of 127 is very close to halfway between zero and 255, the color output of a computer display device when displaying (127, 127, 127) is significantly lower than halfway between the fl level[?] and white point[?] of your monitor.
	www.wordlookup.net /rg/rgb.html (610 words)

	Imaging On-Line Store
		In this paper the authors discuss the use of RGB color space in which the origin is centered in the RGB cube at middle gray.
		This may appear a trivial difference from the tra-ditional RGB color space in which the origin is at fl, yet it is shown that significant advantages accrue from off-setting the origin, as is traditionally done in signal pro-cessing with bipolar samples.
		The geometry of vectors (pixel values) in gray- centered RGB space is described, and related to familiar properties from the hue- saturation-intensity (HSI) representation, which is explained as a dif-ferent coordinate system, based on RGB.
	www.imaging.org /store/epub.cfm?abstrid=30202 (289 words)

	Mathematical Approaches to Linear Vector Filtering of Color Images (Site not responding. Last check: 2007-11-07)
		In this poster the authors discuss the use of RGB color space in which the origin is centered in the RGB cube at mid-gray.
		This may appear a trivial difference from the traditional RGB color space in which the origin is at fl, yet it is shown that significant advantages accrue from offsetting the origin, as is traditionally done in signal processing with bipolar samples.
		The geometry of vectors (pixel values) in gray-centered RGB space is described, and related to familiar properties from the hue-saturation-intensity (HSI) representation, which is explained as a different coordinate system, based on RGB.
	home.att.net /~t.a.ell/Abstracts/AbstractCGIV2004.htm (201 words)

	Color Management for Photographers #006 @Digital Outback Photo
		Colors that are outside the paper gamut need to be mapped using a "perceptual" rendering intent.
		RC is best when only a small portion of colors from the source space will get clipped as the slight compression to the out-of-gamut colors is acceptable and the main body of colors is kept relatively intact.
		Perceptual is going to be the better choice when a large portion of colors from the source space are going to get clipped, as more compression is required to “fit” all of the colors in the target space and still maintain smooth tonal gradations.
	www.outbackphoto.com /color_management/cm_06/essay.html (1714 words)

	Color Space Fundamentals
		Although all colors of the visible spectrum can be produced by merging red, green and blue light, monitors are capable of displaying only a limited gamut (i.e., range) of the visible spectrum.
		The chart to the left plots the visible color spectrum as the large "horse shoe" area, and within this is a plot of the CMYK colors, and the RGB colors.
		Digital art that is comprised of spot colors (e.g., special colors: any colors that are not CMYK process colors), generally require conversion to the CMYK color space to enable file use.
	dx.sheridan.com /advisor/cmyk_color.html (633 words)

	HCI 201 Fall 1999: RGB Color Space (Site not responding. Last check: 2007-11-07)
		Fall 1999 - Section 703 - The RGB Color Space
		The RGB color system is a 24-bit system.
		A color in RGB notation has a set of two hexidecimal numbers to represent each of the three channels.
	condor.depaul.edu /~hmartch/HCI201/week3/rgb.htm (117 words)

	creativepro.com - Out of Gamut: Photoshop 6 Gets Smart With Color
		Under this Policy -- color management set to Off -- when you move pixels from one image to another (via copy/paste, drag and drop, etc.), the numeric pixel values are always pasted, which means that if the source and target images were in different spaces, the color appearance of the transferred pixels would change.
		When you move pixels between two RGB or two Grayscale images that are in different spaces, the color appearance is preserved (the numbers change as the moved pixels get converted to the destination space).
		Untagged images preserve their untagged status, and are interpreted according to the current working space for that color mode.
	www.creativepro.com /story/feature/9155.html (2741 words)

	RGB color space - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-11-07)
		Susstrunk, Buckley and Swen, "Standard RGB Color Spaces" (PDF) (http://ivrgwww.epfl.ch/publications/sbs99.pdf)
		sRGB vs Adobe RGB: The Truth (http://www.shootsmarter.com/infocenter/wc025.html) - a summary of the practical aspects of using the two spaces
		A paper comparing RGB color spaces (http://lcavwww.epfl.ch/~sabines/127.pdf) - an Adobe PDF document
	www.sevenhills.us /project/wikipedia/index.php/RGB_color_space (316 words)

	RGB Color Conversion - Imaging toolkit feature
		In RGB each color is represented by 3 values red (R), green (G) and blue (B), positioned along the axes of the Cartesian coordinate system.
		These fl and the white colors are represented by 2 of the opposite corner of the cube that can be defined by the R, G, B axes of the Cartesian coordinate systems.
		Because the RGB color space is widely used in monitors, digital cameras, it is the most important color space in image processing.
	www.blackice.com /colorspaceRGB.htm (200 words)

	[No title]
		The color space used to create color on a TV or computer monitor is completely different than the color space used to print color on a press:
		Understanding the RGB color space is important to printing because it is the native color space of the computers (and monitors) which create the documents that we print on a press.
		Many RGB colors you make on the computer simply cannot be reproduced on the press with process colors.
	www.techcolor.com /help/rgb.html (914 words)

	KB Article (Site not responding. Last check: 2007-11-07)
		This is due to the color space clipping that occurs when converting from the YUV to the smaller RBG color space.
		Apply the Color Space Adjustment effect to the clip that requires RGB conversion.
		This effect lets you view pixels that are out of range and select how the YUV colors will be modified to lie within the RGB color space.
	www2.softimage.com /dskbtool/article.asp?ID=366 (145 words)

	An Analytical Approach for Sampling the RGB Color Space Considering Physiological Limitations of Human Vision and its ... (Site not responding. Last check: 2007-11-07)
		Abstract: Most of the color image processing algorithms do not consider the non-linearity of human vision, and the limitations of the human vision like- capability to discriminate between two similar colors and maximum number of colors human vision can respond to.
		In this paper, the nonlinearity and physiological limitations of human vision have been used for sampling the RGB color space.
		1 Reduction of color space dimensionality by moment preserving..
	citeseer.ist.psu.edu /713937.html (453 words)

	Canon 10D - color managment question - Canon Digital Photography Forums
		The captured image starts off as color numbers which must be converted to RGB values for your monitor and RGB or CMYK values for printers.
		Note that 10D Adobe RGB images are actually delivered out of the camera "untagged" and must be assigned to the Adobe profile by Photoshop or other application.
		The PS "Color Settings" options determine when you are given the choice to tag the file.
	photography-on-the.net /forum/showthread.php?t=31937 (887 words)

	creativepro.com - Bruce Fraser - Creativepro.com Authors (Site not responding. Last check: 2007-11-07)
		He teaches image reproduction, color correction, and color management at venues in the United States, Europe, and most recently, in a six-city tour of Australia, and has served as a consultant on numerous projects, including Eastman-Kodak's ProPhoto RGB color space and the now-legendary Radius Pressview display.
		Color management is hard enough to figure out even when things work as advertised.
		In the days before color management, all applications displayed RGB files by simply sending the color values in the file straight to the monitor.
	www.creativepro.com /author/home/40.html (2611 words)

	Book Excerpt from PC Magazine: Digital Camera Basics: Mastering Color Controls (Site not responding. Last check: 2007-11-07)
		According to RGB, adding together equal parts of pure red, green, and blue yields white, and the absence of all color is fl.
		The classic example of RGB is holding a crystal prism up to a window and looking at the rainbow-like spectrum of colors that it shines onto the opposite wall.
		Adobe RGB includes a larger range (gamut) of colors than sRGB, especially in the blues and cyans, which is what makes it more appropriate for print output.
	www.pcmag.com /article2/0,1895,1855803,00.asp (1252 words)

	Adobe RGB Color Space Encyclopedia Article, Definition, History, Biography (Site not responding. Last check: 2007-11-07)
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	encyclopedia.localcolorart.com /encyclopedia/Adobe_RGB_color_space (309 words)

	EasyRGB - The first RGB and COLOR search engine on the Web!
		Search popular color collections for specific color codes or names.
		Once selected the desired color, find the closest match in competitors' fandecks and color cards, create harmonies or get chromatic data.
		Before sending us your color cards, fandecks or color collection please contact us first.
	www.easyrgb.com (254 words)

	ICC profile for Adobe RGB 1998 color space
		Now all I need is an ICC profile for the adobe RGB98 color space so I can use my software to convert my images from scanner space to RGB98 space.
		In practical terms a color space is a profile once you're working on a computer (technically the profile just describes the color space, but on a computer that's the way you use a color space).
		The lab suggested RGB98 as a working space that matches the capabilities of their LightJet printer.
	www.photo.net /bboard/q-and-a-fetch-msg?msg_id=001LGm (546 words)

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