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Topic: Color depth

	Color depth - Wikipedia, the free encyclopedia
		Color depth is a computer graphics term describing the number of bits used to represent the color of a single pixel in a bitmapped image or video frame buffer.
		With relatively low color depth, the stored value is typically an index into a color map or palette.
		In higher color depths, the color value typically directly encodes relative brightnesses of red, green, and blue to specify a color in the RGB color model.
	en.wikipedia.org /wiki/Color_depth (993 words)

	Color Depth - Graphics
		Color "depth" is defined by the number of bits per pixel that can be displayed on a computer screen.
		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.
		The GIF format is one such format and has a color depth of 8 bits per pixel or less.
	www.sketchpad.net /basics6.htm (1201 words)

	Bit Depth
		Bit depth quantifies how many unique colors are available in an image's color palette in terms of the number of 0's and 1's, or "bits," which are used to specify each color.
		The bit depth for each primary color is termed the "bits per channel." The "bits per pixel" (bpp) refers to the sum of the bits in all three color channels and represents the total colors available at each pixel.
		Color gradations in images with less than 8-bits per color channel can be clearly seen in the image histogram.
	www.cambridgeincolour.com /tutorials/bit-depth.htm (487 words)

	Test Color Depth
		Color depth can range from 1-bit of information (monochrome) to 24- or 32-bits of information (millions of colors).
		However, higher color depth also means the size of the graphic file will be bigger and take longer to display.
		The use of high bit colors (24- or 32-bit) with not be obvious to the average user, therefore it would be a waste of storage space and time to use these images for web applications.
	www.labtrain.noaa.gov /config/test_color.htm (471 words)

	Monitor Resolution and Color Depth
		Resolution and color depth are usually adjusted with the software driver that works with the computer's operating system through the graphics adapter card.
		Each of the three primary colors (Red, Blue and Green) has a number of bits that describes its color "depth", or the number of shades of that particular color that can be displayed.
		The number of colors are usually talked about in exponential notation, such as the number 2 raised to the second power (two squared, 2x2=4), or two to the eighth power (2x2x2x2x2x2x2x2=256).
	www.astropix.com /HTML/J_DIGIT/MON_RES.HTM (1112 words)

	International Paper - Color Bit Depth (Site not responding. Last check: 2007-10-18)
		Color bit depth refers to the number of colors contained within an image or that can be displayed on a computer monitor.
		The minimum color depth is two colors, which is a 1-bit color depth.
		Another way to express 24-bit color is that each of the three additive primary colors (red, green, and blue), can each display up to 256 different intensity values, which combine with each other to form 16,777,216 colors; the result of multiplying 256 x 256 x 256.
	glossary.ippaper.com /?req=knowledge/article/485 (326 words)

	GRAPHICS: Color displays
		Color monitors for desktop microcomputers are based on cathode ray tubes (CRTs) or back-lighted flat-screen technologies.
		The terminology and memory schemes used in color displays are directly analogous to those used to describe color depth in graphics files.
		In 8-bit images the 256 colors that make up the image are stored in an array called a "palette" or an "index." The color palette may also be referred to as a "color lookup table" (CLUT).
	www.webstyleguide.com /graphics/displays.html (556 words)

	The Arithmetic of Color Depth
		How many colors there are in an image, or how many a system can display is referred to as color depth, pixel-depth, or bit depth.
		To calculate how many different colors can be captured or displayed, simply raise the number 2 to the power of the number of bits used to record or display the image.
		Color images are displayed using 4 bits (16 colors), 8 bits (256 colors), 16 bits (65 thousand colors) called high color, and 24 bits (16 million colors) called true color.
	www.shortcourses.com /pixels/colordepth.htm (625 words)

	Take a look at color depth
		The amount of data used to represent a color is called color depth.
		Color depth is important in two respects when working with graphics: the color depth of your monitor, and the color depth of the files you use to store your images.
		Usually a system running in indexed color allows a separate palette for each application, which is why starting, switching, or closing applications may briefly alter the colors that you see on your screen.
	builder.com.com /5100-31-5075830.html (483 words)

	Virtual Buffer Color Depth (Site not responding. Last check: 2007-10-18)
		The color depth defined with fg_vbdepth() remains in effect until you call fg_vbdepth() or fg_vbinit() again.
		It returns the color depth in bits per pixel, which is of course the number of bits needed to store one pixel in the virtual buffer.
		If we need to know how many different colors the active virtual buffer supports, we can calculate this as 2n, where n is the color depth returned by fg_getdepth().
	www.fastgraph.com /help/virtual_buffer_color_depth.html (276 words)

	Color By Depth (Site not responding. Last check: 2007-10-18)
		Depth based coloring allows you to color passages based on the depth below the top of the cave.
		This dialog box is used to set the depth coloring of the image.
		I have transplanted the color bar into the image so you can see the type of color bar that was used to create this image.
	fadr.msu.ru /~sigalov/compass/coldepth.htm (252 words)

	Reference Guide: Graphics Technical Options and Decisions
		Color depth is the maximum number of colors in an image and is based on the bit depth of the image and of the displaying monitor.
		The number of bits each pixel has is the image's bit depth, and the number of possible colors increases as bit depth increases.
		No matter what the bit depth of your image, it can only be displayed at the highest number of colors the monitor supports, regardless of the number of colors in the original image.
	www.devx.com /projectcool/Article/19997/0/page/7 (711 words)

	Color Depth and Monitor Gamma (Site not responding. Last check: 2007-10-18)
		Each pixel selects one of 256 colors; these colors are defined using either 18 or 24 bits per pixel; this allows 256 colors chosen from a palette of 262,144 or 16.7 million to be displayed at one time.
		If 8-bit color is all you have available, you can often really improve the quality of a displayed image by saving it to disk, then loading it in a tool like LView (on the PC) which can install its own color palette based on the particular single image you're viewing.
		Five bits are used for the red and blue color value; six bits are used for green (the human eye is most sensitive to colors in the yellow-green portion of the visible spectrum, so the extra information is most valuable here).
	www.wherry.com /gadgets/coolscan/gamma.html (623 words)

	► » help:color depth input/output? (Site not responding. Last check: 2007-10-18)
		color depth is 24 bit, like in canon 3000f
		24 bit color is 8 bits red, 8 bits green, and 8 bits blue.
		48 bit color is 16 bits red, 16 bits green, and 16 bits blue.
	www.comp-parts.net /detail-2765460.html (593 words)

	Display Calibration - DisplayCalibration.com - Calibrate Your Computer Display Or Monitor Online For Optimal Viewing (Site not responding. Last check: 2007-10-18)
		Red, green and blue are the additive colors that your monitor uses.
		Cyan, magenta and yellow are the subtractive colors that constitute the inks in your color printer.
		There should be a smooth transition from color to color with no banding and no pixelization.
	www.displaycalibration.com /color_depth.html (459 words)

	Pixel Color and Intensity, Color Depth and the Color Palette
		However, increased color depths also require significantly more memory for storage of the image, and also more data for the video card to process, which reduces the possible maximum refresh rate.
		This reduced color precision results in a slight loss of visible image quality, but it is actually very slight--many people cannot see the differences between true color and high color images unless they are looking for them.
		For this reason high color is often used instead of true color--it requires 33% (or 50% in some cases) less video memory, and it is also faster for the same reason.
	www.pcguide.com /ref/video/modesColor-c.html (910 words)

	What is color depth? - A Word Definition From the Webopedia Computer Dictionary
		Color depth is sometimes referred to as bit depth because it is directly related to the number of bits used for each pixel.
		A 24-bit video adapter, for example, has a color depth of 2 to the 24th power (about 16.7 million) colors.
		One would say that its color depth is 24 bits.
	www.webopedia.com /TERM/C/color_depth.html (143 words)

	COLOR DEPTH (Site not responding. Last check: 2007-10-18)
		Color depth refers to the number of colors that can be displayed on your computer screen.
		The color selector in the lower left corner of the Display Properties window allows you to change the color depth of your display.
		If you had 256 colors selected previously, you should see a remarkable difference in the appearance of graphics on your monitor after you restart your computer.
	www.jssxpress.com /id69.htm (362 words)

	Changing Color depth
		Many Linux users don't know or realize what color depth their desktop is in, nor does it really matter.
		MEPIS Linux uses a 16bit color depth for it's desktop, and forget running Doom 3 until that is changed.
		Unfortunately, color depth can not be changed in real time under Xfree86 as it can in the Windows OS.
	www.mepisguides.com /color/color.html (317 words)

	Color Depth Issues-Windows
		AutoEye has a minimum system requirement that states that you must be running a color depth of at least 16-bit color.
		When users are running at 256, AutoEye will not run because the color depth is to "shallow".
		To fix this you should change your color depth to at least 16-bit color.
	www.autofx.com /techsupport/AutoEye/colordepthw.html (231 words)

	Color Depth - Bits per Pixel (Site not responding. Last check: 2007-10-18)
		The amount of color information in a picture is usually referred to as the color depth or the number of bits per pixel.
		For a given picture size, the bigger the color depth, the more colors that can be represented and the more memory and file storage space that the image will require.
		The more bits used for each pixel, the more colors that can be used to draw the pixel.
	www.lighthousephotorepair.com /Present12Feb2001/Present01.html (226 words)

	SnagIt Learning Center - Color Depth
		Note: The Color Depth option is used to set an image's color depth either during capture or during post-capture processing.
		In error diffusion, the error is the difference between the original pixel color and the nearest match, and the algorithm performs diffusion (spreading of pixel placement) of this error.
		It is the default method that SnagIt uses to dither during color depth reduction.
	www.techsmith.com /learn/snagit/current/editing/7115.asp (1163 words)

	Color Depth Issues
		AutoEye has a minimum system requirement that states that you must be running a color depth of at least 16-bit color (or thousands).
		This means there are not enough colors for AutoEye to function properly.
		To fix this you should change your color depth to at least 16-bit color (or thousands).
	www.autofx.com /techsupport/AutoEye/colordepthm.html (250 words)

	Dithering & Decreasing Color Depth
		Dithering is a process whereby missing colors are represented by intermingling pixels of two or more colors in the images palette.
		If the missing color is too unlike the colors in the palette, the result of dithering will leave a grainy or mottled appearance, as shown in image 2 below.
		In this case, the 8 bit image with error diffusion and reduced color bleeding is 10kb larger than the original jpg.
	www.psptips.com /5/4web/dithering.html (395 words)

	Freeware Download: Color Depth
		Hexagon is a game and your task is to put various balls on hexagon field, but you must obey some rules such as not to put two balls with the same color one next to another and to avoid placing a ball with the same color as the surrounding border.
		All 3Dmeshes and 3Dfaces in one layer are grouped into one X mesh, which gets the name of the layer (and the faces get their original color or the color of the 3Dmesh).
		Easy to use, graphical interface lets you define colors for all scrollbar elements in a friendly, visual environment either by entering hex color values manually, by selecting from a palette, or capturing colors from anywhere on your screen.
	www.dirfile.com /freeware/color-depth1.htm (2798 words)

	Howstuffworks "How Computer Monitors Work"
		In 1981, IBM introduced the Color Graphics Adapter (CGA), which was capable of rendering four colors, and had a maximum resolution of 320 pixels horizontally by 200 pixels vertically.
		EGA allowed up to 16 different colors and increased the resolution to 640x350 pixels, improving the appearance of the display and making it easier to read text.
		In a cathode ray tube, the "cathode" is a heated filament.
	computer.howstuffworks.com /monitor7.htm (422 words)

	What is my color Depth? (Site not responding. Last check: 2007-10-18)
		Also called "color depth" and "pixel depth", the bit depth determines the maximum number of colors that can be displayed at one time.
		True Color (16M colors) is required for photorealistic images and video.
		Most display adapters today support 65K and 16M colors at their highest resolution without noticeable loss of performance in rendering the images.
	www.webtechy.co.uk /knowledge_base/what_is_my_color_depth.asp (185 words)

	color depth (Site not responding. Last check: 2007-10-18)
		The vncviewer has a -depth option to specify color depth.
		It looks like the vncserver to which you are connecting is not running at a depth of 24.
		If that does not work you can use pseudo color (I think -depth 8 -cc 3) but the quality will suffer.
	www.realvnc.com /pipermail/vnc-list/2001-October/025640.html (266 words)

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