A term in color theory used to describe differences in the intensity of light reflected from or transmitted by a color image. The hue of an object may be blue, but the adjectives dark or light distinguish the brightness of one object from another

Amount of white available in a color

The luminance of objects. The brightness of any area of the subject is dependent on how much light falls on it and how reflective it is. Brightness range is the relationship we perceive between the light and dark subjects in a scene. Brightness contrast is a judgment of the relative measure of that range, such as high, low, or normal. Brightness values are sometimes referred to as EV (exposure values), a combination of aperture and shutter speed. Brightness values in the scene are translated to tonal values on film.

In audio, an excessive amount of treble that adds a shrillness to the sound. In video, the amount of light generated by a video display device.

A measure of the whiteness of pulp and paper.

The capacity of paper to reflect light. The brighter the paper, the "whiter" it may appear. Ripon stocks paper with brightness of about 59 (newsprint) to 94 (opaque offset).

A subjective impression of the lightness of an object.

in paper - the light reflecting property of paper when examined under specially calibrated lights.

In paper, brightness refers to how brilliant or reflective paper is. C is short for cyan in the four-color printing process.

An optics and appearance attribute of visual sensation by which an observer is aware of the differences in luminance or lightness and saturation.

A measurement of the image light intensity.

The level of reflective quality.

The degree of light reflecting from a sheet of paper that affects contrast in printing

The degree to which a color sample appears to reflect light. This attribute of color is used in the HSB (Hue, Saturation, Brightness) color model.

the measure of overall color intensity. The lower the brightness, the closer to black the image will be; the higher the brightness the closer to white the image will be.

The reflectance properties or brilliance of a paper.

In paper, the reflectance or brilliance of the paper. In photography, light reflected by the copy.

A perceived dimension of visual stimuli — the extent to which they appear light or dark.

The amount of light emitted by a surface. The lightness or darkness of the image.

The reflections of paper when measured under a specially calibrated wave of blue light.

The (blue light) reflectivity of a sheet of paper measured under standardized conditions on an instrument designed and calibrated specifically for that purpose.

Brightness is the reflectance of blue light. Results are expressed as a percentage, the greater the percentage the higher the level of brightness. All Robert Horne measurements are to ISO (International Standards Organisation) methods and standards

The lightness value between black and white of each pixel in a digital photograph.

A video term describing the light level of the image. A brightness control is used to adjust the light level of an image.

From the Color Menu (sub) Adjust and also available from tool bar button. This option allows you to increase or decrease the amount of light which appears to project from the image. Tool Bar button= black and white vertical bar next to + and - symbol.

Strength of the sensation that results from viewing surfaces from which the light comes to the eye.

The attribute of visual perception in accordance with which an area appears to emit or reflect more or less light (this attribute of color is used in the color model HSB - Hue, Saturation, Brightness). See Lightness.

An attribute of a visual sensation where an area appears to emit more or less light. Brightness is perceived by an observer when photons fall on the rods and cones of the eye's retina, and is not a measurable quantity. Luminance is the measured quantity which closely corresponds to brightness and is measured in candela per square metre. In PACS, it usually refers to the brightness of a display monitor.

Defined by the CIE as the attribute of a visual sensation according to which area appears to emit more or less light. Loosely, the intensity of an image or pixel, independent of color; that is, its value along the axis from black to white.

A term that refers to human perception of luminance. Whereas luminance is a photometrically measured quantity, brightness describes how intense a light source or lighted surface appears to the human eye.

Most mobile projectors put out between 700 and 1500 ANSI lumens, the industry-standard measure of light output. A 700-lumen projector is for a small room with the lights down. A 1200- to 1500-lumen model is better for large lit rooms.

Physiological reaction of a viewer towards the physical value of luminance. Brightness cannot be measured with any apparatus.

An attribute of luminance that describes how much light is emitted in an area.

The subjective attribute of light intensity in which brightness implies higher light intensities and dimness implies lower light intensities.

The reflective quality or brilliance of a piece of paper. In color, the amount of light reflected by a particular color.

(of color) : the perception elicited by the luminance of a visual object; relative lightness or darkness of the color, usually measured as a percentage from 0% (black) to 100% (white); used as a parameter in the HSB color model. meteorology

A systemic evaluation of a star's brightness as it appears from the Earth's surface. The brightness takes in to account galactic dust and gas, the stars actual luminosity, and other factors.

The visual perception of light output. A standard called ANSI lumens is used to compare projectors. The larger the number of lumens, the brighter the projected image should appear. To put things in perspective, consider that a wax candle generates 13 lumens, while a 100-watt light bulb generates 1,200. The industry average for a projector used in a conference room ranges from 1,000 to 2,500 lumens.

the location of a visual perception along the black-to-white continuum

the quality of being luminous; emitting or reflecting light; "its luminosity is measured relative to that of our sun"

The percentage of light that is reflected from a sheet of paper; the brighter the paper, the greater the contrast in the images. Calender: To press paper between rollers during the manufacturing process in order to create a smoother product.

A measure of the amount of electromagnetic radiation from a celestial object. it is expressed as a magnitude, which can be either apparent, whcih depends on an object's intrinsic luminosity and its distance from the detector, or absolute.

Indication of how light or dark an image appears on a screen.

the reflectivity of pulp, paper or paperboard under test conditions, using a specially calibrated measuring instrument. If paper lacks brightness it will absorb too much light so little will reflect back through the ink.

Measure of lightness or darkness of a color.

Brightness can refer to any of several technical terms used in lighting and is, therefore, ambiguous

The value of a pixel along the black-white axis.[ Back to the Top

Both the saturation and lightness of product colour.

The brilliance of paper. Higher numbers are brighter white.

A color attribute that determines how light or how dark the color appears on a TV, or how much light the colors reflect.

1. The amount of light being reflected from a surface. 2. In a printed reproduction, the lightness value regardless of the hue or saturation. Brightness is affected by the reflectance of the paper. This is not called brilliance.

This is the measure of the luminosity in a display.

The appearance, or extent, of internal and external reflections of "white" light seen in a polished diamond when it is viewed face-up.

Describes how light or dark we perceive a color to be. The higher the brightness value, the closer the color will be to white. The brightness of a color is the same as its value.

the characteristic of light that gives a visual sensation of more or less light.

The brilliance or light-reflection characteristic of paper (not necessarily related to its color or whiteness).

Denotes how bright or dark a color is, and is normally measured in percent between 0% (black) and 100% (white).

The lightness value of a color or tone, regardless of its hue or saturation; also, the intensity of a light source.

Comparative, quantified values for the aesthetic characteristic of brightness of the linerboard, typically measured by a 457 nanometer (nm) light source, may be important in certain applications. Variations across a sheet may cause variations in the colors of printed graphics, in the overall appearance and consumer appeal of the package. Brightness is related to, but different from, reflectance.

The measure of how much light is reflected off a printing paper.

"Brightness" is a psycho-physiological phenomenon that cannot be measured directly. The term "photometric brightness" was at one time used to refer to luminance. However, it is no longer used for scientific or engineering purposes.

Paper is rated for brightness on two different scales. The Tappi and GE brightness scale. The brightness of papers levels range from 84 to 96 as rated on the Tappi scale. GE rating scale which is used in other countries is a higher number rating scale for the brightness level of paper. For example: a paper with a GE brightness rating of 108 would be similarly rated on the Tappi scale as having a brightness of 94. Also see “shade”.

The visual perception of light output from an image, measured in lumens.

The degree of light reflected from the surface of paper.

The paper's ability to reflect a volume of light.

In paper, the brilliance or property of the paper's surface to reflect light

Paper's ability to reflect white light. Brightness values are a measure of the reflectivity of paper to light under controlled conditions, on a scale of 0 - 100; most white papers have brightness values of 75-90.

Is the percentage of light the paper reflects. The brighter the paper, the more brilliant the ink colors and the greater the contrast between the paper and type.

(1) The amount of light reflected by a surface. (2) The intensity or amount of light emitted by a light source. (3) The luminance of a color.

The lightness or darkness of an image.

refers to the attribute of a visual sensation by which a stimulus appears more or less intense or appears to emit more or less light. (Brightness is not a photometric standard and should not be used in conjunction with photometric units such as foot lamberts.)

The attribute of visual perception in accordance with which an area appears to emit more of less light. (Luminance is the recommended name for the photoelectric quantity, which has also been called brightness.)

See Apparent Magnitude.

Usually refers to the amount or intensity of video light produced on a screen without regard to color. Sometimes called "black level". In video displays, the Brightness control is used to set the black level, which determines how dark the black portions of a picture are. In describing sound quality, it refers to an excess of high frequency sound. It can be caused by electronics or loudspeakers with excess output at high frequencies, or by rooms that are too reflective, or live, at high frequencies.

the amount of light and dark areas in an image.

The brightness of a light source is defined as the power emitted per unit surface area per unit solid angle.

Attribute of a visual sensation according to which an area appears to emit more or less light. (CIE 45-25-210.) The perceived amount of light coming from an area. "Brightness" is often restricted to apply only to lights and "lightness" is used for the corresponding dimension of the colors of surfaces. One of the three standard elements of color appearance (the other two are hue and saturation). Its colorimetric equivalent is luminance.

A technical measurement of the light reflected back from the paper, with 100 being the highest brightness. High bright papers also usually look the whitest, although visual comparisons between papers of different brightness are often difficult unless they are side-by-side. Even then, close brightnesses are difficult to distinguish.

For video, the overall light level of the entire image. A brightness control makes an image brighter; however, when it is combined with a contrast, or white level control, the brightness control is best used to define the black level of the image (see Black Level). For audio, something referred to as bright has too much treble or high-frequency sound.

Subjective impression of light intensity reaching the eye.

the perceptual experience of the intensity of light, varying from bright to dark (Thorell & Smith, 1990); indistinguishable from lightness on a color CRT (Mayhew, 1992).

Light output measures at the faceplate of the CRT, typically measured in foot-lamberts (F1). A minimum brightness level of 20F1 when viewing at full-page size is considered acceptable.

One of the three dimensions of color (HSB). Brightness is the relative lightness or darkness of a color from 0% black to 100% white.

The light reflecting property of a paper. The more light it reflects the higher its brightness. A bright sheet offers the best print quality and appearance.

Refers to percent of light reflected back from a sheet of paper

In photography, light reflected by the copy. In paper, the reflectance or brilliance of the paper.

The brilliance or reflectance of paper.

The percentage of reflectance or brilliance of paper when measured under a specially calibrated blue light. Defined as the amount of blue-white reflectance compared to magnesium oxide, which is considered 100% bright.

The variation of a color from dark to light resulting from an increase or decrease in illumination.

Light output measured at the faceplate of the CRT; typically measured in foot-lamberts (FI). A minimum brightness level of 20 FI when viewing at full page size is considered acceptable.

Brilliance or light reflectivity characteristic of a particular printing paper. If paper lacks brightness it will absorb too much light, so little will reflect back through the ink.

The amount of light being reflected off an object. Same as lightness. Compare to luminance and tone.

The reflectance or brilliance of a paper, not necessarily related to its color or whiteness.

The light-reflecting property of paper in comparison with a standard reference. Paper brightness affects the legibility and contrast of printing.

The perceived intensity level of light in a visual scene.

Magnitude of the response produced in the eye by light.

The dimension of color that is referred to an achromatic scale, ranging from black to white, also called lightness or luminous reflectance. Because of confusion with saturation, the use of this term should be discouraged.

The reflectance or brilliance of the paper when measured under a specially calibrated blue light; expressed as per cent (0% no reflectance, 100% full reflectance).

a basic visual sensation describing the amount of light that appears to emanate from an object, or more precisely, the luminance of an object

How much light is emitted by the display

Originally, this was the judgment of the amount of light reflected to the eye from the surface of the paper, irrespective of hue or saturation of color. This may now be measured by optical comparators. Many factors affect brightness, including the degree of bleaching of pulp, addition of chemicals such as titanium, and fluorescent dyes. Top grades of text and book papers with these chemicals have brightness in the range up to about 96. Coated paper boards range from 70 to 80. Groundwood paper board is in the high 60's.

A measure of the reflectance of paper in the blue region of the light spectrum. On its own, brightness does not describe the colour of the paper. Brightness is sensitive to the UV content of the illumination if the paper contains fluorescent whitening agent.

A standardized measurement of the percentage of light reflected back from a sheet. A 90 brightness indicates the sheet reflects 90% of the light striking it.

The measurement of reflected light from a paper surface.

The total amount of light.

each pixel's lightness value between black and white.

Same as the luminance signal (Y), which carries information about the amount of light at each point in an image.

Differences in the intensity of light reflected from or transmitted through an image independent of its hue and saturation. It's the value of a pixel in an electronic image, representing its lightness value from black to white. Brightness is usually defined in levels ranging in value from 0 (black) to 255 (white).

Measure intensity (brightness) of a source of light, generally expressed in Candelas per square meter (Cdm2) or feet Lamberts.

An adjustment to control the lightness and darkness of an image, measured by the percentage of reflected light.

A pixel’s value along a black-to-white scale.

Achromatic intensity, relative lighting without regard to colour.

A measure of the amount of energy that reaches Earth from a source, such as a star, galaxy, or planet. Brightness depends on both the intrinsic luminosity (or power output) of the object, and how far away it is. For instance, at the orbit of Pluto, the Sun appears much less bright than at Earth.

Brightness refers to the range from light to dark in an image. Its expressed in levels of 0, which is totally black, to 255, which is totally white.

Visual perception of the luminance of light source.

The balance of light and dark shades in a image. Brightness is distinct from contrast, which measures the range between the darkness and lightest shades in a image. Brightness determines the intensity of shades; contrast determines the number of shades you get.

The property of light reflectivity in paper or emission on a computer screen. Paper brightness (R457) is defined as reflectance of blue light at the 457-nm wavelength. On a scale of 0-100%. Monitor brightness is measured in candelas per meter squared (cd/m2). Media with different brightness levels can cause changes in the appearance of colors, requiring adjustments in calibration.

refers to the value of a pixel in an electronic image, representing its lightness value from black to white. Usually defined as brightness levels ranging in value from 0 (black) to 255 (white).

the amount of white (as compared to the amount of red, green and blue) in a color. On a monitor this translates into the amount of pure light in a color. For light sources and signals that transmit color, the brightness component is also called luminance.

See "Luminance".

the balance or contrast of light and dark shades in an image. Colored paper can produce different brightness levels in an image.

Light reflecting property of paper in comparison with a reference standard. For the explanation of the test to determine brightness of the surface of paper or bond. See Chapter 6.

the ability of a paper to reflect light.

Light output measured at the faceplate of the CRT; typically measured in footlamberts (Fl). A minimum brightness level of 20 Fl when viewing a full-sized page is considered acceptable.

The measurement of the reflective quality of a medium. Different brightness levels can cause changes in the appearance of color on the medium requiring adjustments in calibration to achieve optimum result.

Also called value. One of the three attributes of color, the other two being hue and saturation. Brightness describes differences in the amount of light reflected from or transmitted through an image regardless of its hue and saturation. This is a difficult word to use in marking color correction. People use it for both the addition and substration of color. Correctly used, it refers to the amount of light (paper white) apparent in an area. When speaking about paper, brightness is the light reflectance or brilliance of the paper at a specifc wavelength, often perceived as whiteness. Generally, the higher the brightness rating the better quality the paper.

One of three dimensions of color; the other two are hue and saturation.The term is used to describe differences in the intensity of light reflected from or transmitted through an image independent of its hue and saturation.

Reflectivity of a sheet of pulp or paper measured under standardized conditions; used to indicate the degree of "whiteness".

The degree or intensity of lightness in a colour

The measurement of a pixel in relevance in lightness to black and white. This is usually represented from the range of numbers : 0 (black) to 255 (white).

A term to indicate the relative amount of light intensity available. Brighter is more light, dimmer is less light. In an infrared system, the brightness control may affect actual image intensity or it may change the temperature range displayed. Either effect will change the brightness of a given temperature.

Brightness is measured as the percentage of light in a narrow spectral range reflected from the surface of a sheet of paper. It is not necessarily related to color or whiteness. A paper with a brightness of 98 (like Mohawk Navajo) is an extremely bright sheet with almost all light being reflected back to the viewer. Bright white papers illuminate transparent printing inks, giving cleaner, crisper color, and contrast blacks.

The percentage of light in a narrow spectral range reflected from the surface of a sheet of paper. Brightness is not necessarily related to the whiteness of the sheet, but refers to the amount of light reflected back to the viewer. Bright sheets illuminate transparent printing inks and provide cleaner, crisper colors.

The attribute of visual perception by which an area appears to radiate more or less light.

Brightness is a measure of the amount of energy that reaches Earth from a source, such as a star, galaxy, or planet. Brightness also depends on the distance between Earth and the source. For instance, at the orbit of Pluto, the Sun appears as an extremely bright star in an otherwise dark sky. At Alpha Centauri, a nearby star system 4 light-years away, the Sun appears about as bright as the star Vega in our night sky.

The value that is associated with a pixel to represent its gray value, ranging from black to white.

The degree of obvious lightness of a surface: its brilliancy and concentration of candlepower. Brightness is produced by either a self-luminous thing, by light energy transmitted through objects and by its reflection. Unit of measurement of brightness is a foot-lambert.

Dimension of colour that is referred to an achromatic scale, ranging from black to white; also called lightness or luminous reflectance or transmittance (q.v.). Brightness The overall intensity of the image. The lower the brightness value, the darker the image; the higher the value, the lighter the image will be.

A paper term used to grade the reflectance or brilliance of the paper.

Aspect of visual perception whereby an area appears to emit more or less light.

1. A perceptual property related but not identical to luminance. The brightness of an object depends not only on its luminance but also on that of its surroundings. For example, an object of uniform luminance will appear brighter against a dark background than against a bright background. 2. See radiance.

With garden lighting the word brightness it is commonly used in a negative manner. When the lighting becomes the focus of attention rather than the area or object to be illuminated.

Characteristic of paper referring to how much light it reflects.

The apparent level of light emitted by or reflected from an object. The Brightness Range of an image is measured from the darkest black to the brightest white.

The light intensity of an image. You can make an image appear brighter or darker by adjusting the brightness.

In color, the difference in range from white when compared to dark tones and colors. Could also be considered to be contrast. In photography, brightness is dependent upon correct exposure. Overexposures will be very bright but will have lost highlight density details. Underexposures will be very dense and show little brightness. In paper, the reflectance or brilliance of the paper.

The degree of apparent lightness of a surface: its brilliancy; concentration of candlepower. Brightness is produced by either a self-luminous object, by light energy transmitted through objects or by reflection. Unit of measurement of brightness is the footlambert. (fl). Luminance.

Brightness is the amount of ‘Luminanceâ€(tm), or white portion of a screen that is being displayed. Many display devices can display brightness better than others, and this is often referred to as the ‘Contrast Ratioâ€(tm) of a display device. Some devices, such as LCDs and Plasma panels do not have as good of a Contrast Ratio as other devices such as CRT based televisions and more. See Contrast Ratio for more information.

In color video, the characteristics that makes pictures appear to be most intense, created by luminosity; also the quality of being filled with light

Brightness is an attribute of visual perception in which a source appears to emit a given amount of light. In other words, brightness is the perception elicited by the luminance of a visual target.

The thing that makes darkness go away, measured in lumens on a projector.

A scanner function to lighten or darken the output image data

Detailed observation cannot be performed with a lens that produces a dark image.

Here is the hue blue in several brightnesses: low medium high

the intensity of the shades in an image.

In NTSC and PAL video signals, the brightness information at any particular instant in a picture is conveyed by the corresponding instantaneous DC level of active video. Brightness control is an adjustment of setup (black level, black reference).

The black level of a video display image.

The higher the brightness ratio the more vibrant the picture will appear.

represents the intensity of illumination of the reproduced picture.