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Topic: Colorimetry

Related Topics

Color theory

Color space

HSV color space

Dominant wavelength

Color

Saturation (color theory)

Adobe Wide Gamut RGB color space

Spectral reflectance

HLS color space

Spectrophotometry

RGB color model

Kruithof curve

Brightness

Hue

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	Colorimetry - Wikipedia, the free encyclopedia
		Colorimetry is the science that describes colors in numbers, or provides a physical color match using a variety of measurement instruments.
		Colorimetry is used in chemistry, and in industries such as color printing, textile manufacturing, paint manufacturing and in the food industry.
		Colorimetry is not an exact science due to the limitations inherent in the system (metamerism being the most troublesome), the design of the measurement devices, the values used to estimate a given light source, etc.
	en.wikipedia.org /wiki/Colorimetry (432 words)

	Colorimetry: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-10-22)
		Colorimetry is the science that describe color color quick summary:
		Color (american english) or colour (commonwealth english) is a sensation which (in humans) derives from the ability of the fine structure of the eye...
		Colorimetry is not an exact science due to the limitations inherent in the system.
	www.absoluteastronomy.com /encyclopedia/c/co/colorimetry.htm (1142 words)

	Colorimetry appendix to PROCESSES IN BIOLOGICAL VISION
		This leads to an expansion of the concept of colorimetry that is fundamental to the study of color vision.
		Colorimetry has developed as a specialty within the field of photometry, which is itself a specialty within the field of radiometry.
		The most important is a new definition of "white." It is important that such a definition be fundamental at both the conceptual and scientific levels and that it reflect the fundamentally perceptual aspect of the phenomena.
	www.4colorvision.com /colorim.htm (4218 words)

	Lati S.p.A. - Colorimetry (Site not responding. Last check: 2007-10-22)
		Colour is a physical property of a material that depends on the spectral distribution of incident light and on the light they reflect back in the visible range of the electromagnetic spectrum.
		Colorimetry is the measurement technique used to define the colour.
		The main applications of Colorimetry in the plastics sector are the formulation of colour recipes and in quality control.
	www.lati.com /laboratory/colorimetry.html (253 words)

	International Color Consortium
		The profile connection space is defined as the CIE colorimetry which, in the case of the perceptual rendering intent (defined later), will produce the desired color appearance if rendered on a reference imaging media and viewed in a reference viewing environment.
		Output profiles for media that are viewed in environments different from the reference are responsible for modifying the colorimetry to account for the differences in the observer's state of adaptation as well as any substantial differences in viewing flare present in these environments.
		PCS colorimetry must also be corrected to account for the change in color appearance caused by differences in the absolute luminance level.
	www.color.org /profile.html (3545 words)

	Wiley::Colorimetry: Fundamentals and Applications
		Colorimetry, the science of quantitvely describing color, is essential for color reproduction technology.
		This book is a comprehensive and thorough introduction to colorimetry, taking the reader from basic concepts through to a variety of industrial applications.
		Colorimetry: Fundamentals and Applications is an ideal reference for practising color engineers, color scientists and imaging professionals working on color systems.
	www.wiley.com /WileyCDA/WileyTitle/productCd-0470094729.html (255 words)

	Photometry and Colorimetry (Site not responding. Last check: 2007-10-22)
		Colorimetry is based on the fact that observers can match colours with additive mixtures of three reference stimuli in amounts known as tristimulus values.
		These data can be the chromacity coordinates used in colorimetry; red and blue colour-difference signals can also be used (detailed discussion of these terms is given in Chapter 20).
		As for the gradation of monochrome pictures, it was also experienced that instead of the transmission of infinite number of colour tones it is sufficient to distinguish just 20 different gradations of each colour-difference signal to reproduce a satisfying picture.
	www.hit.bme.hu /people/pfliegel/telecomm/05color.htm (2796 words)

	Colorimetry: Water Testing Kits
		Colorimetry modules are available, increasing in accuracy and sophistication throughout the range.
		One of the most popular and simple ways is by Colorimetry, which includes a range of test equipment including the portable colorimeter, photometers and comparators.
		Colorimetry methods vary in their level of sophistication and accuracy; from simple user judgement such as the water Comparator to state-of-the-art electronics, including the Kittiwake Photometer.
	www.kittiwake.com /Default.aspx/ProductSection/90/ProductSubSection/106/ProductSubSubSection/187/ProductSubSubSubSection/251/Product/704 (610 words)

	Reference.com/Encyclopedia/Colorimetry
		Colorimetry is the science that describe colors in numbers, or provides a physical color match using a variety of measurement instruments, depending on the desired information about the color or colors the customer requires.
		It is an important analytical technique in varying fields, including chemistry, color printing, textiles, paint manufacturers, and many more.
		In some industries they use only a row of pigments, a color to which they are told to match, color correct lighting.
	www.reference.com /browse/wiki/Colorimetry (499 words)

	Industrial Courses in Color-Imaging to be Offered at RIT’s Internationally Known Munsell Color Science Laboratory (Site not responding. Last check: 2007-10-22)
		This course introduces basic colorimetry through derivation of the CIE system of tristimulus values, color spaces such as CIELAB, and color difference equations such as CIE94 and CMC.
		Colorimetry is used in a variety of industries including coatings, textiles, automobiles, plastics and image reproduction.
		Instrumental-based color matching exploits colorimetry, color physics and computer science, resulting in systems that aid colorists in matching existing and new colors.
	www.rit.edu /~930www/News/viewstory.php3?id=506 (607 words)

	Kamera
		CCIR-709 is the new colorimetry standard proposed for the new Digital Advanced Television system of the US and the linear matrix settings in Table I, labeled Reference 709, will alter the standard colorimetry (based on the original NTSC chromaticity coefficients) of the DVW-700 to this new standard.
		Since there is a fairly significant difference in the intrinsic colorimetry of the commonly used film emulsion, data for an “average emulsion” will be approximate, but these setup parameters will generally provide a much closer match to the colorimetry of footage created on film than is provided by the standard colorimetry of a video camera.
		Please note that in many cases the intrinsic (uncorrected) colorimetry of the film emulsion is modified significantly by the artistic contribution of the “Colorist” in the final processing and transfer of the film to video.
	www.kameraarkasi.org /kamera/elektronik/ayarlar/menu/sonydvw700.html (880 words)

	[No title]
		The report is divided into four general groups: \begin{itemize} \item Classical colorimetry as used in colour visual display units \item Colorimetric measurement, technical standards, uncertainties involved with assessing the colour on VDU's \item Colour design and use on visual display units \item Colour perception.
		A review is given of known parametric effects of a human and physical nature, and advice is given for a tentative modification of colour-difference evaluation techniques based on characterized parametric effects.
		In some cases these changes have been quantified, however, these results were carried out using quite different experimental techniques (such as colour matching using a visual colorimeter or judgements of constant stimuli using physical samples) and are based upon very limited numbers of colour centres and observations.
	www.ecst.csuchico.edu /~jacobsd/class/398/color.bib (239 words)

	HSV color space - Wikipedia, the free encyclopedia
		Thus it is not generally advisable to try to make direct comparisons between HSV coordinates and physical light properties such as wavelength or amplitude.
		However, if physical intuitions are indispensable, it is possible to translate HSV coordinates into pseudo-physical properties using the psychophysical terminology of colorimetry as follows:
		Hue specifies the dominant wavelength of the color, except in the range between red and indigo (somewhere between 240 and 360 degrees) where the Hue denotes a position along the line of pure purples
	en.wikipedia.org /wiki/HSV_color_space (1152 words)

	CIE Colorimetry and Colour Displays - Schanda (ResearchIndex) (Site not responding. Last check: 2007-10-22)
		Abstract: CIE colorimetry was standardised 65 years ago to describe colorimetric properties of signal lights.
		The first real application of CIE colorimetry occurred, however, in the textile and coating industries to describe colour matches between sample and reference.
		Thus also the experiments conducted to achieve a uniform colour scale diagram were performed by using material samples usually illuminated by a daylight simulator.
	citeseer.ist.psu.edu /281501.html (553 words)

	handprint : do "primary" colors exist?
		Colorimetry is built on the principle of additive metameric colors.
		Colorimetry builds on the fact that additive color mixing is both promiscuous and precise.
		The imaginary primaries used in colorimetry are simply standardized units of measurement, like the meter, joule or yen.
	www.handprint.com /HP/WCL/color6.html (13659 words)

	PeanutPepper » Crt colorimetry » CRT Standard (Site not responding. Last check: 2007-10-22)
		Colorimetry, gamma and white referenceHigh-Definition Display Technologies to CRT” SMPTE Journal Aug 2000.
		It is a stable document and may be used as reference material or cited as a normative reference from another document.
		In the Automatic and Colorimetry modes there is no need to use a buttonDrive Space Monaco Optix LCD & CRT Display Calibrator Quick, Easyoutstanding profiling solution for both LCD and CRT displays.
	www.peanutandpepper.com /crt-standard/crt-colorimetry.html (327 words)

	Colorimetry: How to Measure Color Differences
		Colorimetry, the science of color measurement, is widely employed in commerce, industry and the laboratory to express color in numerical terms and to measure color differences between specimens.
		The use and importance of colorimetry has grown in unison with the increase of global manufacturing and processing.
		When plastic automotive trim produced on one continent, for example, must match a painted metal finish applied on another, an objective and precise description of color becomes an absolute necessity.
	www.textileweb.com /content/news/article.asp?docid={CC108AFF-E3B1-43B0-8D01-918132F47CBF}&VNETCOOKIE=NO (170 words)

	Ion Chromatography as an Alternative to Standard Methods for Analysis of Macro-nutrients in Mehlich 1 Extracts of ...
		This study evaluates ion chromatography (IC) as an alternative to atomic absorption (AA) and inductively-coupled plasma spectromctry (ICP) for analysis of potassium (K), magnesium (Mg), and calcium (Ca), and and as an alternative to antimonylmolybdate colorimetry and ICP for analysis of phosphorus (P) macro-nutrients in Mehlich 1 extracts.
		IC correlates well with AA and ICP for K and Ca, but not for Mg, unless conditions are chosen that resolve Mg from manganese (Mn).
		The merits of IC relative to AA, ICP, and colorimetry for forest soil testing are discussed.
	www.srs.fs.usda.gov /pubs/7743 (400 words)

	Colorimetry
		To understand colorimetry, the science of measuring color, one needs to understand the language of light measurement.
		As flawed as this system was, it was the first successful attempt to quantify color, and describe it numerically.
		Note the colorimetry of film and video systems overlaid on the CIE chart.
	www.cameraguild.com /technology/colorimetry.htm (4128 words)

	Product News Network: Spectrodensitometer measures density/colorimetry functions
		Users can switch on-the-fly to colorimetry functions when quality control for pastels, Hi-Fi, and PANTONE[R] is needed.
		Since spectrophotometry is the newest and most precise color control technology available today, the result is an accurate, versatile, efficient instrument capable of keeping both process and special colors on target.
		Switch on-the-fly to colorimetry functions like Lab,* Yxy, and LCh[degrees] and more when you need quality control for pastels, Hi-Fi, PANTONE,[R] and other special colors.
	www.findarticles.com /p/articles/mi_m0PIL/is_2005_May_27/ai_n13783321 (376 words)

	Intuitive colorimetry for dyslexia
		The rights to the Intuitive Colorimeter are owned by the Medical Research Council of Great Britain and the instrument is used, under licence, by a number of clinics in the UK for diagnosing very specific coloured tints to help some dyslexic patients.
		Various beneficial effects were reported including, in some patients, reduction in seizures and improved comfort in certain light environments (Wilkins et al 1999).
		Dr Barnard is able to offer advice for dyslexics, migraine sufferers and photosensitive epileptics and provide guidance as to whether Intuitive Colorimetry may be useful in individual cases.
	www.eye-spy.co.uk /color.html (288 words)

	Colorimetry and computer graphics (Site not responding. Last check: 2007-10-22)
		The science of colorimetry is important in computer graphics.
		Among other things, it provides us with objective ways to identify colors and methods to convert spectral energy distributions to RGB triplets.
		The result is meant to look like the sky on a rainy day.
	www.student.nada.kth.se /~nv91-gta/color (134 words)

	The Role Of Colorimetry & Spectrophotometry In The
		The Role Of Colorimetry & Spectrophotometry In The
		When it comes to foods, color and appearance are the most important first impressions, even before one's olfactory sense is tickled with a pleasing aroma.
		Both fresh and processed food producers know this well, and are increasingly adopting instrumental color measurement technologies and practices to control color better across a wide range of applications.
	www.foodonline.com /Content/news/article.asp?Bucket=Article&DocID={D7AAE46F-8BF7-46E6-BE2B-2D9372E7A072}&VNETCOOKIE=NO (207 words)

	Calculations for Colorimetry
		Along with operating the instruments, colorimetry also involves calculations to actually figure out the concentration of a solution from the absorbance measurements made by using the colorimeters.
		There are three methods that can be used depending on what information is available.
		Use the following questions to test your ability to do colorimetry calculations.
	dl.clackamas.cc.or.us /ch105-04/calculat1.htm (749 words)

	Color
		Almost all of this field has to do with the perception of color, that is, to studying the conditions that cause or contribute to colors being seen, or to ways in which the colors as they appear may be studied.
		An example of the second kind of research is the many studies in colorimetry, involving the specification of colors.
		Typically these involve matching techniques in which the subject is asked to match some stimulus with one or another of a range of standardized cases.
	plato.stanford.edu /entries/color (18003 words)

	[No title] (Site not responding. Last check: 2007-10-22)
		Publication CIE 15.2-1986 is the second edition of the CIE Recommendations on Colorimetry, it is much enlarged and updated.
		It summarizes the CIE recommendations for colorimetry: for the standard illuminants, for the standard colorimetric observers, for the standard of reflectance factor, illuminating and viewing conditions of colorimetry, the calculations of tristimulus values, chromaticity coordinates and colour differences, and for various other colorimetric practices and formulae.
		This second edition contains chapters on "Special metamerism index: change of illuminants" and "Recommendations on uniform color spaces, color difference evaluations and psychometric color terms", previously published as Supplements to the original Publication CIE 15, Colorimetry, 1971, as well as a new section on a formula for evaluating whiteness.
	www.cie.co.at /publ/abst/15-2-86.html (221 words)

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