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3205 results about "Color temperature" patented technology

The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of a color comparable to that of the light source. Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, manufacturing, astrophysics, horticulture, and other fields. In practice, color temperature is meaningful only for light sources that do in fact correspond somewhat closely to the radiation of some black body, i.e., light in a range going from red to orange to yellow to white to blueish white; it does not make sense to speak of the color temperature of, e.g., a green or a purple light. Color temperature is conventionally expressed in kelvins, using the symbol K, a unit of measure for absolute temperature.

System and method for controlling dynamically interactive parameters for image processing

A system and related techniques generate and present a set of linked, dynamically interactive image processing controls for image editing and optimization tasks. In embodiments a user interface may present a set of global editing modes such as color manipulation, exposure correction or others. Each mode may contain a hierarchical set of basic, intermediate and advanced controls such as one-button automatic fixes, color or saturation sliders or editable histograms or other curves. When a user wishes, for instance, to achieve a warmer color balance or perform other color-correction tasks, the system may automatically detect adjustments in one or more parameters, such as CMYK values, and automatically adjust the values of other parameters to enhance the intended correction or action. For instance when the magenta content on a CMYK slider is increased, the color saturation may be slightly increased or color temperature may be slightly raised, to create a warmer appearance in the color cast of the image. Other combinations of image parameters may be linked. According to embodiments, a set of editable curves such as histograms or gamma curves may be dragged or otherwise adjusted or manipulated by users, and saved for re-application to other images or at other times.
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