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Tone reproduction

Index Tone reproduction

In the theory of photography, tone reproduction is the mapping of scene luminance and color to print reflectance or display luminance, with the aim of subjectively "properly" reproducing brightness and "brightness differences". [1]

33 relations: Absorbance, Adobe Photoshop, Black and white, Brightness, CIELAB color space, CMYK color model, Color, Color space, Curve (tonality), Digital photography, Display device, Dodging and burning, Dot gain, Exposure (photography), Gamma correction, Graduated neutral-density filter, Halftone, Illuminance, Image sensor, Ink, Inkjet printing, International Color Consortium, Jones diagram, Logarithm, Luminance, Photographic film, Photographic paper, Photography, Reflectance, Sensitometry, Substrate (printing), Tone mapping, Xerography.

Absorbance

In chemistry, absorbance or decadic absorbance is the common logarithm of the ratio of incident to transmitted radiant power through a material, and spectral absorbance or spectral decadic absorbance is the common logarithm of the ratio of incident to transmitted spectral radiant power through a material.

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Adobe Photoshop

Adobe Photoshop is a raster graphics editor developed and published by Adobe Systems for macOS and Windows.

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Black and white

Black and white, often abbreviated B/W or B&W, and hyphenated black-and-white when used as an adjective, is any of several monochrome forms in visual arts.

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Brightness

Brightness is an attribute of visual perception in which a source appears to be radiating or reflecting light.

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CIELAB color space

The CIELAB color space (also known as CIE L*a*b* or sometimes abbreviated as simply "Lab" color space) is a color space defined by the International Commission on Illumination (CIE) in 1976.

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CMYK color model

The CMYK color model (process color, four color) is a subtractive color model, used in color printing, and is also used to describe the printing process itself.

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Color

Color (American English) or colour (Commonwealth English) is the characteristic of human visual perception described through color categories, with names such as red, orange, yellow, green, blue, or purple.

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Color space

A color space is a specific organization of colors.

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Curve (tonality)

In image editing, a curve is a remapping of image tonality, specified as a function from input level to output level, used as a way to emphasize colours or other elements in a picture.

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Digital photography

Digital photography is a form of photography that uses cameras containing arrays of electronic photodetectors to capture images focused by a lens, as opposed to an exposure on photographic film.

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Display device

A display device is an output device for presentation of information in visual or tactile form (the latter used for example in tactile electronic displays for blind people).

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Dodging and burning

Dodging and burning are terms used in photography for a technique used during the printing process to manipulate the exposure of a selected area(s) on a photographic print, deviating from the rest of the image's exposure.

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Dot gain

Dot gain, or tonal value increase, is a phenomenon in offset lithography and some other forms of printing which causes printed material to look darker than intended.

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Exposure (photography)

In photography, exposure is the amount of light per unit area (the image plane illuminance times the exposure time) reaching a photographic film or electronic image sensor, as determined by shutter speed, lens aperture and scene luminance.

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Gamma correction

Gamma correction, or often simply gamma, is a nonlinear operation used to encode and decode luminance or tristimulus values in video or still image systems.

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Graduated neutral-density filter

A graduated neutral-density filter, also known as a graduated ND filter, split neutral-density filter, or just a graduated filter, is an optical filter that has a variable light transmission.

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Halftone

Halftone is the reprographic technique that simulates continuous tone imagery through the use of dots, varying either in size or in spacing, thus generating a gradient-like effect.

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Illuminance

In photometry, illuminance is the total luminous flux incident on a surface, per unit area.

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Image sensor

An image sensor or imaging sensor is a sensor that detects and conveys the information that constitutes an image.

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Ink

Ink is a liquid or paste that contains pigments or dyes and is used to color a surface to produce an image, text, or design.

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Inkjet printing

Inkjet printing is a type of computer printing that recreates a digital image by propelling droplets of ink onto paper, plastic, or other substrates.

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International Color Consortium

The International Color Consortium was formed in 1993 by eight vendors in order to create an open, vendor-neutral color management system which would function transparently across all operating systems and software packages.

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Jones diagram

A Jones diagram is a type of Cartesian graph developed by Loyd A. Jones in the 1940s, where each axis represents a different variable.

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Logarithm

In mathematics, the logarithm is the inverse function to exponentiation.

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Luminance

Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction.

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Photographic film

Photographic film is a strip or sheet of transparent plastic film base coated on one side with a gelatin emulsion containing microscopically small light-sensitive silver halide crystals.

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Photographic paper

Photographic paper is a paper coated with a light-sensitive chemical formula, used for making photographic prints.

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Photography

Photography is the science, art, application and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film.

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Reflectance

Reflectance of the surface of a material is its effectiveness in reflecting radiant energy.

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Sensitometry

Sensitometry is the scientific study of light-sensitive materials, especially photographic film.

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Substrate (printing)

Substrate is used in a converting process such as printing or coating to generally describe the base material onto which, e.g. images, will be printed.

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Tone mapping

Tone mapping is a technique used in image processing and computer graphics to map one set of colors to another to approximate the appearance of high-dynamic-range images in a medium that has a more limited dynamic range.

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Xerography

Xerography or electrophotography is a dry photocopying technique.

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Redirects here:

Tonal Reproduction Curve, Tonal Response Curve, Tone reproduction curve, Tone response curve.

References

[1] https://en.wikipedia.org/wiki/Tone_reproduction

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