(1) The general term for describing the tone separation in a print in relation to a given difference in the light-and shade of the negative or subject from which it was made Thus, contrast is the general term for the property called "gamma" (Y), which is measured by making an H & D Curve for the proces under study (2) The range of tones in a photographic negative or positive expressed as the ratio of the extreme opacities or transparencies or as the difference between the extreme densities This range is more properly described as "scale" or "latitude" (3) The ability of a photographic material, developer, or process as a whole to differentiate among small graduations in the tones of the subject
To give greater effect to, as to a figure or other object, by putting it in some relation of opposition to another figure or object
Relative difference in light coming from a target compared to the surrounding background, usually the horizon sky Any difference in the optical quality of two adjacent images
The degree of difference in the thickness of strokes in a font, especially on a curved stroke Sans serif fonts typically have little or no contrast, serif and cursive fonts usually have higher contrast See also axis and transition
The degree of difference between a subject's tones, which is a function of its inherent shades and colors and also the quality of light
The difference in light output between the areas of a display that are illuminated and non-illuminated
If one thing is a contrast to another, it is very different from it. The boy's room is a complete contrast to the guest room. a country of great contrasts
If one thing is in contrast to another, it is very different from it. His public statements have always been in marked contrast to those of his son
In lighting, contrast is defined as the difference between the foreground luminance and the background luminance, divided by the background luminance Contrast is what the human eye relies on to see object detail, and is the most important quantity to reproduce faithfully in any rendering algorithm
a conceptual separation or demarcation; "there is a narrow line between sanity and insanity"
A control on a television, etc, that adjusts the amount of contrast in the images being displayed
A comparison between the lightest and darkest part of an image Low contrast indicates a very gray image, while high contrast represents highly defined differences between light and dark
{i} act of contrasting; state of unlikeness; opposition, variance; sharpness, difference between dark and light pixels (Computers)