Get it on Google Play
New! Download Unionpedia on your Android™ device!
Faster access than browser!

High-dynamic-range imaging

+ Save concept

High-dynamic-range imaging (HDRI) is a high dynamic range (HDR) technique used in imaging and photography to reproduce a greater dynamic range of luminosity than is possible with standard digital imaging or photographic techniques. [1]

91 relations: Adaptation (eye), Adobe Photoshop, Adobe Systems, Albert Schweitzer, Ansel Adams, Aperture, Aurora HDR, Autobracketing, Bracketing, Canon EOS 40D, Canon EOS-1D Mark II, Canon PowerShot G, Canon PowerShot G7 X, Canon PowerShot S100, Canon PowerShot S95, Channel (digital image), Charge-coupled device, Charles Wyckoff, Chrominance, Color calibration, Color depth, Comparison of graphics file formats, Depth of field, Digital image, Digital imaging, Display contrast, Dodging and burning, DxO, Dynamic Photo HDR, EasyHDR, EG&G, Exposure (photography), Exposure value, Fixed-point arithmetic, Floating-point arithmetic, Gamma correction, Gustave Le Gray, Half-precision floating-point format, HDR PhotoStudio, High dynamic range, High-dynamic-range rendering, High-dynamic-range video, Iris (anatomy), J. Paul Getty Museum, JPEG, JPEG XT, Life (magazine), Logarithm, Logluv TIFF, Lossy compression, ..., Luminance, Luminance HDR, Luminosity, MagicRaw, Max Planck Institute for Informatics, Microsoft, Mobile device, Nik Software, Nikon D7200, Nikon D810, Oloneo PhotoEngine, OpenEXR, Oversampled binary image sensor, Panasonic Lumix DC-GH5, Pentax K-7, Photo manipulation, Photo-essay, Photographic emulsion, Photography, Photomatix Pro, Photometry (optics), Power law, PTGui, Radiance, Raw image format, Reversal film, RGBE image format, ScRGB, SilverFast, Smartphone, Steve Mann, Technion – Israel Institute of Technology, Tone mapping, Transfer function, Ultra-high-definition television, Universal Windows Platform, Visual system, W. Eugene Smith, Wide dynamic range, Windows 10, Zone System. Expand index (41 more) »

Adaptation (eye)

In ocular physiology, adaptation is the ability of the eye to adjust to various levels of light.

New!!: High-dynamic-range imaging and Adaptation (eye) · See more »

Adobe Photoshop

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

New!!: High-dynamic-range imaging and Adobe Photoshop · See more »

Adobe Systems

Adobe Systems Incorporated, commonly known as Adobe, is an American multinational computer software company.

New!!: High-dynamic-range imaging and Adobe Systems · See more »

Albert Schweitzer

Albert Schweitzer, OM (14 January 1875 – 4 September 1965) was a French-German theologian, organist, writer, humanitarian, philosopher, and physician.

New!!: High-dynamic-range imaging and Albert Schweitzer · See more »

Ansel Adams

Ansel Easton Adams (February 20, 1902 – April 22, 1984) was an American photographer and environmentalist.

New!!: High-dynamic-range imaging and Ansel Adams · See more »


In optics, an aperture is a hole or an opening through which light travels.

New!!: High-dynamic-range imaging and Aperture · See more »

Aurora HDR

Aurora HDR is photographic software developed by Macphun Software for Mac OS X. MacPhun changed its name to Skylum in early 2018.

New!!: High-dynamic-range imaging and Aurora HDR · See more »


Autobracketing is a feature of some more advanced cameras, whether film or digital cameras, particularly single-lens reflex cameras, where the camera will take several successive shots (often three) with slightly different settings.

New!!: High-dynamic-range imaging and Autobracketing · See more »


In photography, bracketing is the general technique of taking several shots of the same subject using different camera settings.

New!!: High-dynamic-range imaging and Bracketing · See more »

Canon EOS 40D

The Canon EOS 40D is a 10.1-megapixel semi-professional digital single-lens reflex camera.

New!!: High-dynamic-range imaging and Canon EOS 40D · See more »

Canon EOS-1D Mark II

The EOS 1D Mark II is a professional 8.2 megapixel digital single lens reflex camera (DSLR) camera body produced by Canon.

New!!: High-dynamic-range imaging and Canon EOS-1D Mark II · See more »

Canon PowerShot G

The Canon PowerShot G is a series of digital cameras released by Canon.

New!!: High-dynamic-range imaging and Canon PowerShot G · See more »

Canon PowerShot G7 X

The Canon PowerShot G7 X is a digital compact camera announced by Canon Inc. on September 15, 2014.

New!!: High-dynamic-range imaging and Canon PowerShot G7 X · See more »

Canon PowerShot S100

The Canon PowerShot S100 is a high-end 12.1-megapixel compact digital camera announced and released in 2011.

New!!: High-dynamic-range imaging and Canon PowerShot S100 · See more »

Canon PowerShot S95

The Canon PowerShot S95 is a high-end 10.0-megapixel compact digital camera announced and released in 2010.

New!!: High-dynamic-range imaging and Canon PowerShot S95 · See more »

Channel (digital image)

Color digital images are made of pixels, and pixels are made of combinations of primary colors represented by a series of code.

New!!: High-dynamic-range imaging and Channel (digital image) · See more »

Charge-coupled device

A charge-coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value.

New!!: High-dynamic-range imaging and Charge-coupled device · See more »

Charles Wyckoff

Charles Wales Wyckoff (1916 – May 9, 1998) was an American photographic innovator, a photochemist specializing in high speed photography, also noted today for his innovations in the field of high dynamic range imaging.

New!!: High-dynamic-range imaging and Charles Wyckoff · See more »


Chrominance (chroma or C for short) is the signal used in video systems to convey the color information of the picture, separately from the accompanying luma signal (or Y for short).

New!!: High-dynamic-range imaging and Chrominance · See more »

Color calibration

The aim of color calibration is to measure and/or adjust the color response of a device (input or output) to a known state.

New!!: High-dynamic-range imaging and Color calibration · See more »

Color depth

Color depth or colour depth (see spelling differences), also known as bit depth, is either the number of bits used to indicate the color of a single pixel, in a bitmapped image or video frame buffer, or the number of bits used for each color component of a single pixel.

New!!: High-dynamic-range imaging and Color depth · See more »

Comparison of graphics file formats

This is a comparison of image file formats.

New!!: High-dynamic-range imaging and Comparison of graphics file formats · See more »

Depth of field

In optics, particularly as it relates to film and photography, the optical phenomenon known as depth of field (DOF), is the distance about the Plane of Focus (POF) where objects appear acceptably sharp in an image.

New!!: High-dynamic-range imaging and Depth of field · See more »

Digital image

A digital image is a numeric representation, normally binary, of a two-dimensional image.

New!!: High-dynamic-range imaging and Digital image · See more »

Digital imaging

Digital imaging or digital image acquisition is the creation of a digitally encoded representation of the visual characteristics of an object, such as a physical scene or the interior structure of an object.

New!!: High-dynamic-range imaging and Digital imaging · See more »

Display contrast

Contrast in visual perception is the difference in appearance of two or more parts of a field seen simultaneously or successively (hence: brightness contrast, lightness contrast, color contrast, simultaneous contrast, successive contrast, etc.). Contrast in physics is a quantity intended to correlate with the perceived brightness contrast, usually defined by one of a number of formulae (see below) which involve e.g. the luminances of the stimuli considered, for example: ΔL/L near the luminance threshold (known as Weber contrast), or LH/LL for much higher luminances.

New!!: High-dynamic-range imaging and Display contrast · See more »

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.

New!!: High-dynamic-range imaging and Dodging and burning · See more »


DxO is a French company dedicated to photography, founded in 2006, it is located in Boulogne-Billancourt.

New!!: High-dynamic-range imaging and DxO · See more »

Dynamic Photo HDR

Dynamic Photo HDR is a photography software developed by Mediachance for Microsoft Windows, designed to create and tone map high dynamic range photos by combining multiple JPG or RAW camera images taken using multiple exposures.

New!!: High-dynamic-range imaging and Dynamic Photo HDR · See more »


EasyHDR is photographic software developed by Bartłomiej Okonek for macOS and Microsoft Windows since February 2006.

New!!: High-dynamic-range imaging and EasyHDR · See more »


EG&G, formally known as Edgerton, Germeshausen, and Grier, Inc., was a United States national defense contractor and provider of management and technical services.

New!!: High-dynamic-range imaging and EG&G · See more »

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.

New!!: High-dynamic-range imaging and Exposure (photography) · See more »

Exposure value

In photography, exposure value (EV) is a number that represents a combination of a camera's shutter speed and f-number, such that all combinations that yield the same exposure have the same EV (for any fixed scene luminance).

New!!: High-dynamic-range imaging and Exposure value · See more »

Fixed-point arithmetic

In computing, a fixed-point number representation is a real data type for a number that has a fixed number of digits after (and sometimes also before) the radix point (after the decimal point '.' in English decimal notation).

New!!: High-dynamic-range imaging and Fixed-point arithmetic · See more »

Floating-point arithmetic

In computing, floating-point arithmetic is arithmetic using formulaic representation of real numbers as an approximation so as to support a trade-off between range and precision.

New!!: High-dynamic-range imaging and Floating-point arithmetic · See more »

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.

New!!: High-dynamic-range imaging and Gamma correction · See more »

Gustave Le Gray

Jean-Baptiste Gustave Le Gray (30 August, 1820 – 30 July, 1884)Le Corre, Florence.

New!!: High-dynamic-range imaging and Gustave Le Gray · See more »

Half-precision floating-point format

In computing, half precision is a binary floating-point computer number format that occupies 16 bits (two bytes in modern computers) in computer memory.

New!!: High-dynamic-range imaging and Half-precision floating-point format · See more »

HDR PhotoStudio

HDR PhotoStudio is a discontinued high dynamic range (HDR) graphics application developed by Unified Color for Windows and macOS operating systems.

New!!: High-dynamic-range imaging and HDR PhotoStudio · See more »

High dynamic range

High dynamic range (HDR) is a dynamic range higher than what is considered to be standard dynamic range.

New!!: High-dynamic-range imaging and High dynamic range · See more »

High-dynamic-range rendering

High-dynamic-range rendering (HDRR or HDR rendering), also known as high-dynamic-range lighting, is the rendering of computer graphics scenes by using lighting calculations done in high dynamic range (HDR).

New!!: High-dynamic-range imaging and High-dynamic-range rendering · See more »

High-dynamic-range video

High-dynamic-range video (HDR video) describes video having a dynamic range greater than that of standard-dynamic-range video (SDR video), which uses a conventional gamma curve.

New!!: High-dynamic-range imaging and High-dynamic-range video · See more »

Iris (anatomy)

In humans and most mammals and birds, the iris (plural: irides or irises) is a thin, circular structure in the eye, responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina.

New!!: High-dynamic-range imaging and Iris (anatomy) · See more »

J. Paul Getty Museum

The J. Paul Getty Museum, commonly referred to as the Getty, is an art museum in California housed on two campuses: the Getty Center and Getty Villa.

New!!: High-dynamic-range imaging and J. Paul Getty Museum · See more »


JPEG is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography.

New!!: High-dynamic-range imaging and JPEG · See more »


JPEG XT (ISO/IEC 18477) is an image compression standard which specifies backward-compatible extensions of the base JPEG standard (ISO/IEC 10918-1 and ITU Rec. T.81).

New!!: High-dynamic-range imaging and JPEG XT · See more »

Life (magazine)

Life was an American magazine that ran regularly from 1883 to 1972 and again from 1978 to 2000.

New!!: High-dynamic-range imaging and Life (magazine) · See more »


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

New!!: High-dynamic-range imaging and Logarithm · See more »

Logluv TIFF

Logluv TIFF is an encoding used for storing high dynamic range imaging data inside a TIFF image.

New!!: High-dynamic-range imaging and Logluv TIFF · See more »

Lossy compression

In information technology, lossy compression or irreversible compression is the class of data encoding methods that uses inexact approximations and partial data discarding to represent the content.

New!!: High-dynamic-range imaging and Lossy compression · See more »


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

New!!: High-dynamic-range imaging and Luminance · See more »

Luminance HDR

Luminance HDR, formerly Qtpfsgui, is graphics software used for the creation and manipulation of high-dynamic-range images.

New!!: High-dynamic-range imaging and Luminance HDR · See more »


In astronomy, luminosity is the total amount of energy emitted per unit of time by a star, galaxy, or other astronomical object.

New!!: High-dynamic-range imaging and Luminosity · See more »


MagicRaw was a camera raw image format and HDR (High Dynamic Range) digital imaging software processor designed to make the process of merging multiple photographs into high dynamic range images and convert raw files into displayable images.

New!!: High-dynamic-range imaging and MagicRaw · See more »

Max Planck Institute for Informatics

The Max Planck Institute for Informatics (German: Max-Planck-Institut für Informatik, abbreviated MPI-INF or MPII) is a research institute in computer science with a focus on algorithms and their applications in a broad sense.

New!!: High-dynamic-range imaging and Max Planck Institute for Informatics · See more »


Microsoft Corporation (abbreviated as MS) is an American multinational technology company with headquarters in Redmond, Washington.

New!!: High-dynamic-range imaging and Microsoft · See more »

Mobile device

A mobile device (or handheld computer) is a computing device small enough to hold and operate in the hand.

New!!: High-dynamic-range imaging and Mobile device · See more »

Nik Software

Nik Software is a software development company established in 1995 and based in San Diego, California.

New!!: High-dynamic-range imaging and Nik Software · See more »

Nikon D7200

The Nikon D7200 is a 24-megapixel APS-C digital single-lens reflex camera announced by Nikon on March 2, 2015.

New!!: High-dynamic-range imaging and Nikon D7200 · See more »

Nikon D810

The Nikon D810 is a 36.3-megapixel professional-grade full-frame digital single-lens reflex camera produced by Nikon.

New!!: High-dynamic-range imaging and Nikon D810 · See more »

Oloneo PhotoEngine

Oloneo PhotoEngine is a popular digital image editing software application developed by Paris-based Oloneo SAS.

New!!: High-dynamic-range imaging and Oloneo PhotoEngine · See more »


OpenEXR is a high dynamic range raster file format, released as an open standard along with a set of software tools created by Industrial Light and Magic (ILM), under a free software license similar to the BSD license.

New!!: High-dynamic-range imaging and OpenEXR · See more »

Oversampled binary image sensor

An oversampled binary image sensor is an image sensor with non-linear response capabilities reminiscent of traditional photographic film.

New!!: High-dynamic-range imaging and Oversampled binary image sensor · See more »

Panasonic Lumix DC-GH5

The Panasonic Lumix DC-GH5 is a Micro Four Thirds mirrorless interchangeable lens camera body announced by Panasonic on 4 January 2017.

New!!: High-dynamic-range imaging and Panasonic Lumix DC-GH5 · See more »

Pentax K-7

The Pentax K-7 is a 14.6-megapixel digital single-lens reflex camera, announced on 20 May 2009.

New!!: High-dynamic-range imaging and Pentax K-7 · See more »

Photo manipulation

Photo manipulation involves transforming or altering a photograph using various methods and techniques to achieve desired results.

New!!: High-dynamic-range imaging and Photo manipulation · See more »


A photo-essay is a set or series of photographs that are made to create series of emotions in the viewer.

New!!: High-dynamic-range imaging and Photo-essay · See more »

Photographic emulsion

Photographic emulsion is a light-sensitive colloid used in film-based photography.

New!!: High-dynamic-range imaging and Photographic emulsion · See more »


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.

New!!: High-dynamic-range imaging and Photography · See more »

Photomatix Pro

Photomatix Pro is raster image post-processor developed by HDRsoft for merging multiple photographs into high dynamic range images and then locally tone mapping them.

New!!: High-dynamic-range imaging and Photomatix Pro · See more »

Photometry (optics)

Photometry is the science of the measurement of light, in terms of its perceived brightness to the human eye.

New!!: High-dynamic-range imaging and Photometry (optics) · See more »

Power law

In statistics, a power law is a functional relationship between two quantities, where a relative change in one quantity results in a proportional relative change in the other quantity, independent of the initial size of those quantities: one quantity varies as a power of another.

New!!: High-dynamic-range imaging and Power law · See more »


PTGui is a panorama photo stitching program for Windows and Mac OS X developed by New House Internet Services BV.

New!!: High-dynamic-range imaging and PTGui · See more »


In radiometry, radiance is the radiant flux emitted, reflected, transmitted or received by a given surface, per unit solid angle per unit projected area.

New!!: High-dynamic-range imaging and Radiance · See more »

Raw image format

A camera raw image file contains minimally processed data from the image sensor of either a digital camera, image scanner, or motion picture film scanner.

New!!: High-dynamic-range imaging and Raw image format · See more »

Reversal film

In photography, reversal film is a type of photographic film that produces a positive image on a transparent base.

New!!: High-dynamic-range imaging and Reversal film · See more »

RGBE image format

RGBE or Radiance HDR is an image format invented by Gregory Ward Larson for the Radiance rendering system.

New!!: High-dynamic-range imaging and RGBE image format · See more »


scRGB is a wide color gamut RGB (Red Green Blue) color space created by Microsoft and HP that uses the same color primaries and white/black points as the sRGB color space but allows coordinates below zero and greater than one.

New!!: High-dynamic-range imaging and ScRGB · See more »


SilverFast is the name of a family of software for image scanning and processing, including photos, documents and slides, developed by LaserSoft Imaging.

New!!: High-dynamic-range imaging and SilverFast · See more »


A smartphone is a handheld personal computer with a mobile operating system and an integrated mobile broadband cellular network connection for voice, SMS, and Internet data communication; most, if not all, smartphones also support Wi-Fi.

New!!: High-dynamic-range imaging and Smartphone · See more »

Steve Mann

Steven Mann (born 1962) is a Canadian researcher and inventor best known for his work on augmented reality, computational photography, particularly wearable computing and high dynamic range imaging.

New!!: High-dynamic-range imaging and Steve Mann · See more »

Technion – Israel Institute of Technology

The Technion – Israel Institute of Technology (הטכניון – מכון טכנולוגי לישראל Ha-Tekhniyon — Makhon Tekhnologi le-Yisrael) is a public research university in Haifa, Israel.

New!!: High-dynamic-range imaging and Technion – Israel Institute of Technology · See more »

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.

New!!: High-dynamic-range imaging and Tone mapping · See more »

Transfer function

In engineering, a transfer function (also known as system function or network function) of an electronic or control system component is a mathematical function giving the corresponding output value for each possible value of the input to the device.

New!!: High-dynamic-range imaging and Transfer function · See more »

Ultra-high-definition television

Ultra-high-definition television (also known as Ultra HD television, Ultra HD, UHDTV, UHD and Super Hi-Vision) today includes 4K UHD and 8K UHD, which are two digital video formats that were first proposed by NHK Science & Technology Research Laboratories and later defined and approved by the International Telecommunication Union (ITU).

New!!: High-dynamic-range imaging and Ultra-high-definition television · See more »

Universal Windows Platform

Universal Windows Platform (UWP) is an API created by Microsoft and first introduced in Windows 10.

New!!: High-dynamic-range imaging and Universal Windows Platform · See more »

Visual system

The visual system is the part of the central nervous system which gives organisms the ability to process visual detail, as well as enabling the formation of several non-image photo response functions.

New!!: High-dynamic-range imaging and Visual system · See more »

W. Eugene Smith

William Eugene Smith (December 30, 1918 – October 15, 1978) was an American photojournalist, who has been described as "perhaps the single most important American photographer in the development of the editorial photo essay." His major photo essays include World War II photographs, the dedication of an American country doctor and a nurse midwife, the clinic of Dr Schweitzer in French Equatorial Africa, the city of Pittsburgh, and the pollution which damaged the health of the residents of Minamata in Japan.

New!!: High-dynamic-range imaging and W. Eugene Smith · See more »

Wide dynamic range

Wide Dynamic Range (WDR) is a term used in the surveillance camera industry to refer to High Dynamic Range Imaging.

New!!: High-dynamic-range imaging and Wide dynamic range · See more »

Windows 10

Windows 10 (codenamed Redstone, formerly Threshold) is a personal computer operating system developed and released by Microsoft, as part of the Windows NT family of operating systems.

New!!: High-dynamic-range imaging and Windows 10 · See more »

Zone System

The Zone System is a photographic technique for determining optimal film exposure and development, formulated by Ansel Adams and Fred Archer.

New!!: High-dynamic-range imaging and Zone System · See more »

Redirects here:

HDR image, HDR imaging, HDR photo, HDR photography, HDRI, Hdr images, Hdr photos, Hdri, High Dynamic Range, High Dynamic Range Imaging, High dynamic range image, High dynamic range imaging, High dynamic-range imaging, High-dynamic-range images.


[1] https://en.wikipedia.org/wiki/High-dynamic-range_imaging

Hey! We are on Facebook now! »