The tonal range from a very light grey (1% dot) up to solid black (100% dot) in increments of 1% When an image has "shading" or "screening" it is referred to as a grey scale image
Gray scale can be viewed as a degenerate case of pseudo color, in which case the red, green, and blue values in any given color map entry are equal, thus producing shades of gray The gray values can be changed dynamically
Variations of values from white, through shades of gray, to black in a digitized image with black assigned the value of zero and white the value of one
Generally refers to a monochrome ordering of 256 shades between black and white which are assigned to raster picture elements (pixels) according to reflected light, heat, and/or other relative intensity measurements Most common digital display option for scanned black and white orthophotos
A strip of standard gray tones ranging from white to black, to measure the tonal range obtained during photography or plate exposure See also: Sensitivity Guide to top
1 As applied to an image, composed of (discrete) shades of gray If the pixels of a gray-scale image have n bits, they may take values from zero, representing black, up to 2-1, representing white Intermediate values represent increasingly light shades of gray If n=1, the image is not called gray-scale but black-and-white (or a line drawing) 2 A range of accurately known shades of gray printed out for use in calibrating those shades on a display or printer
a strip of standard gray tones ranging from white to black, places at the side of original copy during photography to measure tonal range and contrast obtained
A range of shades of gray in an image Gray scales of scanners are determined by the number of grays, or values between black and white, that they can recognize and reproduce
a reflection or transmission scale of gray tones in steps from clear or white at one end to black at the other, with steps in-between showing evenly intensified series of gray tones (It is attached to the original design or copy to determine accuracy of exposure and uniformity of color separations Patches of yellow, cyan and magenta are included with the scale when photographing for color separations); also referred to as gray or step wedge
Strip of gray values ranging from white to black Used by process camera and scanner operators to calibrate exposure times for film and plates Also called step wedge
A strip of standard gray tones, ranging from white to black, placed at the side of original copy during photography to measure tonal range and contrast (gamma) obtained
A scale showing the full range of gray tones between pure white and solid black While most computer software used today recognizes 256 levels of gray, the human eye can only see 80 to 100 levels
(US "gray-scale") 1 Composed of (discrete) shades of grey If the pixels of a grey-scale image have N bits, they may take values from zero, representing black up to 2^N-1, representing white with intermediate values representing increasingly light shades of grey If N=1 the image is not called grey-scale but could be called monochrome
- The range of shades of black In scanners the degree of greyscale is measured in 8-bit or 16-bit This represents the number of variables available in each pixel
The brightness of a pixel expressed as a value representing it's lightness from black to white: Usually defined as a value from 0 to 255, with 0 being black and 255 being white A term used to describe an image containing shades of grey as well as black and white
The range of shades of black within an image These black pixels are assigned values (0=black through 255=white) This is in contrast to thresholded images in which each pixel is either black or white with no shading between
An image type that uses black, white, and 254 shades of grey Frequently used in discussions about scanners as a measure of their ability to capture halftone images