The degree of blackness in an image. This is a common setting on a video digitizer. The highest setting will produce an all-black image whereas the lowest setting will yield very little, if any, black even with black objects in the scene. Black level is an important digitization setting since it can be adjusted so that there is little or no noise in an image.
Technically, the video level that produces black in a video display. Commonly, "black level" refers to a video display's ability to present the color black as truly black and not as dark gray.
A measurement of a television's ability to display deep black. The ability to display detail in shadowy or dark parts of the picture is also a factor of a TV's black level capabilities. CRTs generally have the best black level performance.
Describes the appearance of darker portions of a video image. Black is the absence of light, so to create the black portions of an image, a display must be able to shut off as much light as possible. Displays with good black level capability not only produce deeper blacks, but also reveal more details and shading in dark or shadowy scenes. High-quality CRT-based TVs generally have better black level performance than digital displays such as plasma, LCD, DLP, and LCoS.
Refers to the intensity of black in a picture. If not set correctly, picture detail quality will be poor in dimly lit scenes of a movie. Also refers to the ability of the display to produce a dark, deep shade of black. This is often a problem in plasma and lcd displays.
the level of the picture signal corresponding to the maximum limit of black peaks. This level is generally set t 75% of the maximum signal amplitude of the synchronizing pulses.
This is part of the video signal, close to the sync level, but slightly aboe it(usually 20mV - 50mV) in order to be distinguished from the blanking level. It electronically represents the black part of an image, whereas the white part is equivalent to 0.7V from the sync level.
More commonly referred to as "brightness", the black level is the level of light produced on a video screen. The level of a picture signal corresponding to the maximum limit of black peaks. The bottom portion of the video wave form, which contains the sync, blanking and control signals. The black level is set by the "brightness" control.
A part of the video signal, close to the sync level, but slightly above it (usually 20 mV - 50 mV) in order to be distinguished from the blanking level. It electronically represents the black part of an image, whereas the white part is equivalent to 0.7 V from the sync level.
Light level of the darker portions of a video image. A black level control sets the light level of the darkest portion of the video signal to match that of the display's black level capability. Black is, of course, the absence of light. Many displays, however, have as much difficulty shutting off the light in the black portions of an image as they do creating light in the brighter portions. CRT-based displays usually have better black levels than DLP, plasma, and LCD, which rank, generally, in that order.
The level of brightness at the darkest (black) part of a visual image or the level of brightness at which no light is emitted from a screen resulting in pure black. Also referred to as Brightness.
The level of brightness at the darkest (black) part of a visual image or the level of brightness at which no light is emitted from a screen resulting in pure black. A poor video display may have a black level in which the "black" is actually a dark charcoal gray color. When a video display cannot achieve a true black level, the screen will lose some saturation in colors and will appear slightly washed out.
The dark parts of a video signal corresponding to approximately 0.3 volts.
The darkest portion of the video picture. Reference black.
In the active video portion of the video waveform, the voltage level that defines black. See also horizontal blanking and video waveform.
The darkest portion of the video signal typically set at a level which is 270-300mv above the sync level.
The level of the video signal that corresponds to the maximum limits of the black areas of the picture.
The voltage in a video signal which corresponds to black.
Video black level is defined as the level of brightness at the darkest (black) part of a visual image or the level of [brightness] at which no light is emitted from a screen, resulting in a pure black screen.
