Colour & Colour Management
18 terms
Camera Profile
A description of how a particular camera model renders colour, applied during raw conversion to translate sensor values into a colour space.
Colour & Colour ManagementChroma
The colourfulness of an area judged relative to the brightness of a similarly lit white, a perceptually defined counterpart to saturation.
Colour & Colour ManagementChromatic Adaptation
The visual system's automatic adjustment to the colour of the prevailing light, which keeps familiar objects looking the same colour under…
Colour & Colour ManagementCIE Chromaticity Diagram
The horseshoe-shaped plot of all colours visible to human vision, on which colour space gamuts are drawn as triangles.
Colour & Colour ManagementCIELAB
A device-independent colour model with one lightness axis and two opponent colour axes, designed so equal numerical steps look equally…
Colour & Colour ManagementColorimeter
An instrument that measures colour through three filters approximating human vision, used mainly for calibrating displays.
Colour & Colour ManagementColour Banding
Visible steps in what should be a smooth gradient, caused by too few tonal levels to render the transition continuously.
Colour & Colour ManagementColour Cast
An unwanted overall tint across an image, usually caused by the light source or by reflections from coloured surfaces.
Colour & Colour ManagementColour Checker
A card of printed patches with known colour values, photographed in a scene to allow accurate colour correction and profiling.
Colour & Colour ManagementColour Constancy
The perceptual effect by which an object keeps its apparent colour across widely different illuminants.
Colour & Colour ManagementColour Grading
The deliberate shaping of an image's colour for stylistic effect, as distinct from correcting it toward accuracy.
Colour & Colour ManagementColour Harmony
A relationship between the colours in an image that the viewer perceives as coherent rather than accidental.
Colour & Colour ManagementColour Management
The system of profiles and conversions that keeps colour consistent as an image moves between camera, screen, printer and web.
Colour & Colour ManagementColour Rendering Index
A score out of 100 describing how faithfully a light source reveals the colours of objects compared with a reference illuminant.
Colour & Colour ManagementColour Space
A defined set of colours, described by primaries, a white point and a transfer function, within which numerical colour values have a…
Colour & Colour ManagementColour Temperature
A measure of the colour of a light source, expressed as the temperature of a theoretical black body radiating the same hue.
Colour & Colour ManagementComplementary Colours
Pairs of colours sitting opposite each other on the colour wheel, which produce maximum contrast when placed together.
Colour & Colour ManagementCustom White Balance
Setting white balance by photographing a known neutral target under the actual light and telling the camera to treat it as neutral.