dynamic range


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dynamic range

[dī¦nam·ik ′rānj]
(electronics)
The ratio of the specified maximum signal level capability of a system or component to its noise level; usually expressed in decibels.
(graphic arts)
In scanning an image, the range of gradations of tones in the original from the lightest highlight to the darkest shadow that must be converted by the scanner.

dynamic range

(1) The difference between (the ratio) of the highest and lowest signal in an electronic circuit. Dynamic range measures the highest voltage, current or power compared to the lowest signal.

When the music CD first came out in the mid-1980s, its dynamic range was widely touted. The CD could more accurately record an orchestra's range of volume than a vinyl phonograph record, such as from the quietest passages to the loudest drums.

(2) The difference between (the ratio) of the lightest and darkest elements on a printed or displayed image. A photo with a "high" dynamic range means that the image can contain both very bright and very dark areas. See HDR and HDR for photos.
References in periodicals archive ?
This dynamic range mode essentially optimises shadows, dark areas and highly exposed areas automatically, within the camera, as you shoot.
"The new link meets this extended dynamic range, keeping ViaLite at the forefront of dynamic range capabilities."
In this paper the histogram equalization and the successive mean quantization transform methods for contrast enhancement of a low dynamic range image were evaluated and a comparison with an HDR- camera was shown.
Traditional AGC algorithms remove extreme values and linearly map dynamic range onto 8bit domain.
The high dynamic range market is also expected to witness growth in the entertainment sector, accounting for the largest market share during the forecast period.
It can not effectively compress dynamic range. Larson et al.
Dual-Sensitivity Pixel Technology featuring two sensitivity detection cells (one for brightness; one for darkness) in each pixel, taking advantage of the high-saturation performance and flexibility of the OPF CMOS image sensor sensitivity setting in order to achieve a simultaneous-capture wide dynamic range. 3.
LG's 2016 OLED TV sets that will be made available in the region by the second quarter have the latest display technologies, including high dynamic range (HDR) with both HDR and Dolby Vision, claiming to be the first of their kind with both formats.
HDR doesn't only increase the brightness of an image, it works on overall dynamic range between black and white by making the dark parts darker and the bright parts brighter, while retaining detail when both are in the frame.
It has an excellent agreement with cultural plate count methods and has a huge dynamic range of 110,000 bacteria in a single test device such that it can be used for presence/absence test or enumeration purposes.
Filled with stunning black and white photographs, this guide offers tips and tricks to use High Dynamic Range (HDR) photography to take black and white pictures.
The recent introduction of Agilent Technologies' N2820A Series High-Sensitivity, High Dynamic Range Oscilloscope Current Probe changes this dynamic.

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