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Topic: Calculating RGB values

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	United States Patent: 6,512,838
		Limited as he is to such RGB value data, a microprocessor or signal processor in a Korth system at best might detect the contour of the fingers against the background image, if ambient lighting conditions are optimal.
		Let c.sub.j (i) be the sampled value of pixel j at sample i, and let C.sub.j (i) be the running average of the measurement from samples 1 to i for pixel j.
		Brightness value depends on factors including surface reflectivity of the target object within imaging view, distance between the camera and the target object, the fraction of the cell that is covered by the target object, and so forth.
	www.roeder-johnson.com /RJDocs/CA-Patent-6512838.html (18885 words)

	Imatest - Using Colorcheck
		The grayscale values are derived from the definition of ISO speed for digital sensors, as described in the Colorcheck Appendix.
		These values, as well as the old and new GretagMacbeth values, are described in Danny Pascale's RGB coordinates of the MacBeth ColorChecker, which is strongly recommended for all Colorcheck users.
		The corrected values, denoted by i_corr, are substituted for the measured values in the ΔC calculation.
	www.imatest.com /docs/colorcheck.html (4846 words)

	Image Menu (Site not responding. Last check: 2007-11-06)
		Pixels with a value less than the minimum are displayed as fl and those with a value greater than the maximum are displayed as white.
		Pixels with brightness values greater than or equal to the lower threshold and less than or equal to the upper threshold are displayed in red.
		With inverted LUTs, pixels with a value of zero are white and pixels with a value 255 are fl.
	rsb.info.nih.gov /ij/docs/menus/image.html (3043 words)

	efg's Palettes and Colors -- ShowImage Lab Report
		RGB color planes are shown as shades of of the color, or as shades of gray, when the Monochrome checkbox is selected.
		RGB coordinates are shown from 0 to 255 or 0.000 to 1.000.
		Hue values are shown either from 0 to 255 or from 0 to 360 degrees.
	www.efg2.com /Lab/Graphics/Colors/ShowImage.htm (1326 words)

	User Macro Document - Scalar2Texture
		Instead of explictly calculating a colormap and using that to generate colors at node points, UV texture coordinate values can be calculated at each node point.
		Values of points in between node points can be calculated by simple interpolation.
		Once the UV texture coordinates have been calculated they are merged with the original mesh and replace the original scalar data.
	www.iavsc.org /repository/express/pages/scl2tex/doc_umac.shtml (822 words)

	WCS Color Device Model Profile Schema and Algorithms (Site not responding. Last check: 2007-11-06)
		These device RGB values are specific to a particular capture device, and the goal of colorimetric characterization is to establish an empirical relationship between the device RGB values and CIEXYZ values.
		The CMY values are obtained by inversion of the corresponding CMY to Luv table using the Newton methods employed elsewhere by the RGB printer algorithm.
		The appropriate value of K is chosen by analyzing the lightness as well as the degree of color in the Luv requested.
	msdn.microsoft.com /library/en-us/icm/wcs_cdmpschema.asp?frame=true (7053 words)

	UserTalk CMYK to RGB Conversion
		RGB is an additive colour model (add more light to make colours lighter etc.) and CMY is subtractive (add pigmentation to remove light from a reflecting surface and make colours darker).
		Swap R values for C values and invert the percentage.
		Note: If there is a fl value, then I'd guess at dividing it's value by two or three and then adding/subtracting it equally to all three colours.
	old.scriptmeridian.org /projects/tips/cmyktorgb.html (711 words)

	Thesis
		Instead of visually recording the data under a second set of viewing conditions, input the values for the first viewing condition into the model, and depending on how good the model is, and the output should be an accurate prediction of the second set of tristimulus values.
		E* is a color-difference calculation based upon the Euclidean distance between the color of a sample under test and reference sources.
		This function altered the values of the Bradford M matrix for a number of iterations and found a new M matrix that when utilized in the linear model, would give data similar to the output XYZ values from the Bradford model.
	www.cis.rit.edu /research/thesis/bs/2000/ochs/thesis.htm (1930 words)

	Dr. Dobb's \| Algorithm Alley \| July 22, 2001 (Site not responding. Last check: 2007-11-06)
		As soon as a set of 16 colors for a particular RGB value is created, it is sorted on brightness and arranged in a table; this table is used when dithering a picture.
		With the RGB value used as an address, a combination of 16 colors is selected from the table.
		The calculation of a table of 128 Kbytes is comparable to dithering 128,000 pixels with ED (not counting the sorting of the four colors).
	www.ddj.com /184409369?pgno=7 (2040 words)

	Computer homework (Site not responding. Last check: 2007-11-06)
		All of these transformations are based on the following idea: each pixel in the transformed image is calculated from the values of the original pixel and its immediate neighbors, i.e., the 3x3 array of pixels centered on the old pixel whose new value we are trying to calculate.
		As with the negate transformation, the calculations are carried out independently for each color, i.e., the new red value for a pixel is obtained from the old red values, and similarly for red and blue.
		That means we cannot replace the original pixels with new values before the old values have been used to compute the new values of their neighbors.
	www.seattlecentral.org /faculty/flepeint/javaclass/hw5.html (1818 words)

	Glossary (PNG: The Definitive Guide)
		RGB image with a premultiplied alpha channel, all RGB values in completely transparent regions are replaced by fl pixels.
		Adjustment of the color values in an image in order to compensate for variations in the color output of various display devices--for example, between two monitors made by different manufacturers, or between a monitor and a color printer.
		RGB color space, a means of specifying precisely how any given RGB value should appear on a monitor or printed paper or any other output device.
	www.faqs.org /docs/png/glossary.html (4181 words)

	values
		This allows cases with some available values and some missing values to be utilized to the maximum extent when building the model.
		You are able to enter numerical values with pad buttons or use stopwatches to log time intervals.
		The extracted graph values, distances, areas, and color values can be saved as Excel or comma-delimited text files.
	www.exefind.com /values/page3.html (727 words)

	Using the Treo 650 as a bluetooth mouse - TreoCentral.com (Site not responding. Last check: 2007-11-06)
		To determine vectoral displacement the average RGB values for the current image and the last image can be passed into a comparative algorithm and send the new coordinates to the host system.
		The guy from the Nokia project suggested that instead of tracking all of the changes in color, that the Treo track the change in position of a certain subimage to be determined by the difference in its average RGB values to all average RGB values minus itself (difficult to explain...
		RGB values of (6,7,8) and (10,11,12) are both nearly identical shades of a very dark grey on a macroscopic level, but still differentiable in the code.
	discussion.treocentral.com /showthread.php?p=1121891 (2219 words)

	CS154 - Short Assignment 8 (Site not responding. Last check: 2007-11-06)
		The first problem we encountered was that, given the RGB values of a certain pixel, we needed to find an accurate means of defining the hue of this pixel.
		Thus, by calculating the hue for each pixel in the image, we have a means of isolating red pixels.
		After a bit of searching on Google, we came across this set of code that calculates a hue value from a set of RGB values.
	www.cs.hmc.edu /~dodds/projects/RobS03/RCP/hw8 (409 words)

	Rgb Programs - Easy Color Picker, Little RGB Color Picker, VideoDesktop, ...
		With the RGB Color Mixer Applet it is possible to define the RGB values of a selected color.
		RGB Editor is a small utility useful for selecting and creating RGB colors for graphics projects.
		The values of the red, green and blue components are displayed and easily transferred to your source code files.
	www.softchecker.com /files/rgb_2.html (578 words)

	Pantone
		As you will see, the RGB values in the color swatches range from 0 - 255 and are also described as a percent value, 0 - 100%.
		The RGB values in PowerPoint 4.0 are defined from 0 - 65535.
		To calculate the RGB values in PowerPoint 4.0, multiply 65535 by the RGB percentage shown for the color you desire from the color swatch.
	members.tripod.com /~laban66/doc/pantone.html (1342 words)

	This Week With My Coleco ADAM 9611.18
		Color television must transmit full RGB triplets for each screen pixel, but do it in such a way that (a) there is a luminance signal for bandw sets, and (b) the color signals aren't detected by a bandw set.
		Rather than transmit (R,G,B) as three separate signals, a means was devised mathematically to encode the information in only one signal, called "chrominance", and the encoded signal was shoehorned into unused bandwidth in the existing bandw television signal in such a way that bandw sets couldn't detect it.
		A luminance signal was generated by combining the (R,G,B) signals in proportions which reflect the sensitivity of the red, green, and blue photoreceptors of the human eye.
	junior.apk.net /~drushel/pub/coleco/twwmca/wk961118.html (2877 words)

	efg's Reference Library: Delphi Graphics Algorithms -- Color
		// Calculates Hue, Luminance and Saturation for the clrRGB value
		Calculates Hue, Luminance and Saturation for the clrRGB value
		H is assigned a new value, H', from the TrackBar.
	www.efg2.com /Lab/Library/Delphi/Graphics/Color.htm (3610 words)

	GameDev.net - Game Programming Genesis Part V : Palettes and Pixels in DirectDraw
		It's an important value to remember, because you'll have to use it to calculate the offset to a particular pixel.
		Then you multiply each of the three values by the level of fading to apply, recombine the RGB values, and write the new color back out to the buffer.
		The value of jump is the number of USHORTs from the end of a line on the 200-pixel-wide viewport to the beginning of the next line.
	www.gamedev.net /reference/articles/article1270.asp (5292 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		The HEX and RGB boxes display the HEX and RGB values associated with the currently choosen color.
		RGB and HEX values may be entered manually in the appropriate boxes as long as they are entered with the proper syntax.
		HEX values must be in the form: #000000 RGB values must be in the form: 0 0 0 The calc HEX and calc RGB buttons are used for calculating the equivalent values from entries in either of the input boxes.
	www.binaryrevelations.com /wsd/Readme.txt (692 words)

	Rgb Programs - MiniApps, WhatColor, Neomesh Image Converter, ...
		WhatColor tells you not only RGB values, but also the name of the color of the point.
		CamPSA is a program for the Windows operating system that monitors the video signal from one camera (or your screen) and is able to detect if a significant part of the picture selections has changed.
		I bought a PDA last month ot keep mys chedule, but this calculator program is one of the best things I've found to do on a PDA.
	www.softchecker.com /files/rgb_3.html (550 words)

	LostCircuits, Video Guide
		One way of avoiding the jagged edges is to supersample the images at twice the linear dimensions, or 4 times the amount of pixels and then perform anti aliasing, which means calculating the RGB values for each pixel according to the four surrounding pixels in x/y direction.
		Since each pixel has to be divided into 4 subpixels, the amount of work required by FSAA increases with the square of the resolution.
		The Radeon does support all three current forms of bump mapping, the easiest of which is embossing which is realized essentially by subtracting identical frames with a shift by one or more pixels to one side (away from the light source).
	www.lostcircuits.com /video/ati_aiw32/8.shtml (794 words)

	jawRay (Site not responding. Last check: 2007-11-06)
		Images are generated by following rays of light recursively through the scene, calculating shades and lighting contributions and recording the final color.
		If the file exists, the RGB values will be ignored.
		The color is RGB (1, 1, 1), or white, and no texture (the filename NO_TEXTURE does not exist in this case).
	www.jawed.com /jawray (528 words)

	Webmonkey \| Authoring: HTML Basics
		The "ffffff" represents the RGB value of white, translated into hexadecimal...
		Any color that can be displayed on a monitor can be described by its RGB value - its relative amounts of red, green, and blue (each of which is expressed as a two-digit number, such as 51 or 14 or 00).
		In order for a Web browser to understand the RGB values, they must each be translated into a hexadecimal (or base-16) number.
	www.webmonkey.com /teachingtool/bgcolor.html (536 words)

	Coloring By Numbers
		It's a placeholder for a whole range of possible values, which are the subject of today's discussion.
		Every decimal number (that is, every number in the base-ten counting system we all use) has an equivalent value in the hexadecimal notation, which is base-sixteen.
		As for converting from hexadecimal to integers (and from there to percentages), my recommendation is that you use a calculator which convert between decimal and hexadecimal numbers, or a obtain program for your computer which does the same thing.
	www.case.edu /dms/homes/eam3/pubs/webrev/199807.html (1287 words)

	Demosaicing - Wikipedia, the free encyclopedia (via CobWeb/3.1 planetlab2.cs.unc.edu) (Site not responding. Last check: 2007-11-06)
		There are a number of different ways the pixels are arranged in practice, the most common being the Bayer filter similar to the image at right, alternating values of Red (R) Green (G) for odd rows and alternating values of Green (G) and Blue (B) for even rows.
		Since each raw pixel of the sensor is behind a color filter, the output is a mosaic of monochrome pixels in one of the color components (e.g.
		In this method, the red value of a non-red pixel is computed as the average of the adjacent red pixels, and similar for blue and green.
	en.wikipedia.org.cob-web.org:8888 /wiki/Demosaicing (861 words)

	HTML RGB converter. Convert rgb mode color to hex color. rgb color chooser (Site not responding. Last check: 2007-11-06)
		This is an rgb color code choosing utility.The RGB color mcode is an additive model in which red, green and blue (often used in additive light models) are combined in various ways to reproduce other colors.
		The name of the model and the abbreviation "RGB" come from the three primary colors, Red, Green and Blue.
		FREE Online tools (convertor or calculater) are intended to make the calculation and conversion of math or logical or arithmetic problems and give simple solutions.
	www.easycalculation.com /rgb-coder.php (162 words)

	New Page 1
		Compiled QBasic program that helps the developer find the correct color values for inclusion in screen modes 12 and 13 - which are capable of including 16/256 of 262,144 colors!
		A simple program that demonstrates that not all variables perform calculations at the same speed.
		Can be used also as a "bench-mark" program.
	hometown.aol.com /_ht_a/uwlabs/uwl_files.htm (1052 words)

	Freeware Home - Free Software Downloads: Programming - HTML Tools - Colors
		Select a color from the palette and this handy little utility displays the html hex code and the RGB values for that color, fine tune the color using the sliding controls, also shows a color sample.
		Pop-a-Color Value is a simple graphics tool that can be used to get color values when making skins for programs and also when creating websites.
		When looking for html color values, hex color values, or rgb color values, Pop-a- Color Value is convenient for finding color value ranges.
	www.freewarehome.com /Programming/HTML_Tools/Colors_t.html (1565 words)

	3d Morphing - 6.837 Final Project Proposal
		Morphing has been done in two dimensions by varying the values of the pixels of one image to make a different image, or in three dimensions by varying the values of three-dimensional pixels.
		An intermediate value between two pixels can be obtained by interpolating rgb values of the source and end pixels in more or less complicated ways.
		The values of the scaling and translating parameters are updated for each intermediate object as well.
	web.mit.edu /manoli/morph/www/morph.html (6092 words)

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