komunikacja: Color photography

Evidence: 100 • authority: 72

Color photography (or colour photography in Commonwealth English) is photography that uses media capable of capturing and reproducing colors. By contrast, black-and-white or gray-monochrome photography records only a single channel of luminance (brightness) and uses media capable only of showing shades of gray. In color photography, electronic sensors or light-sensitive chemicals record color information at the time of exposure. The spectrum of colors is divided into three channels, one dominated by red, another by green and the third by blue, imitating the normal human eye. The recorded data is then used to reproduce the original colors by mixing various proportions of red, green and blue…

Evidence: 68 • authority: 72

The Autochrome Lumière was an early colour photography process patented in 1903 by the Lumière brothers in France and first marketed in 1907. Autochrome was an additive color "mosaic screen plate" process. It was one of the principal colour photography processes in use before the advent of subtractive color film in the mid-1930s. Prior to the Lumière brothers, colour photography was based on the three‑colour principle first suggested by Scottish physicist James Clerk Maxwell in 1855. Louis Ducos du Hauron utilized the separation technique to create colour images on paper with screen plates, producing natural colours through superimposition, which would become the foundation of all commercia…

Evidence: 22 • authority: 88

Photography as Used in Color Reproduction in the Graphic Arts: The Three-Color Theory of Vision—Making Photographic Materials Sensitive to Colors—Natural-Color Photographs—Color-Separation Negatives—Printing Processes—Modern Four-Color Printing Presses and Th…. Abstract Indications are that the demand for color in the graphic arts, produced by means of photography, will continue to increase, and this means that as the fundamental principles appear to be well established, further improvements will be made in machinery and materials and the skill in using them; and particularly in adjusting practice as closely as possible to theory, so that color reproduction, while maintaining the highest po…

Evidence: 22 • authority: 72

Photography is the art, application, and practice of creating images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employed in many fields of science, manufacturing (e.g., photolithography), and business, as well as its more direct uses for art, film and video production, recreational purposes, hobby, and mass communication. A person who operates a camera to capture or take photographs is called a photographer, while the captured image, also known as a photograph, is the result produced by the camera. Typically, a lens is used to focus the light reflected or emitted from objects in…