![]() ![]() The concept of a "picture element" dates to the earliest days of television, for example as " Bildpunkt" (the German word for pixel, literally 'picture point') in the 1888 German patent of Paul Nipkow. ![]() McFarland said simply it was "in use at the time" (circa 1963). McFarland, at the Link Division of General Precision in Palo Alto, who in turn said he did not know where it originated. Billingsley had learned the word from Keith E. Billingsley of JPL, to describe the picture elements of scanned images from space probes to the Moon and Mars. The word "pixel" was first published in 1965 by Frederic C. By 1938, "pix" was being used in reference to still pictures by photojournalists. The word pix appeared in Variety magazine headlines in 1932, as an abbreviation for the word pictures, in reference to movies. The word pixel is a combination of pix (from "pictures", shortened to "pics") and el (for " element") similar formations with ' el' include the words voxel and texel. In some contexts (such as descriptions of camera sensors), pixel refers to a single scalar element of a multi-component representation (called a photosite in the camera sensor context, although sensel is sometimes used), while in yet other contexts (like MRI) it may refer to a set of component intensities for a spatial position. ![]() In color imaging systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black. In digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element in a raster image, or the smallest addressable element in an all points addressable display device so it is the smallest controllable element of a picture represented on the screen.Įach pixel is a sample of an original image more samples typically provide more accurate representations of the original. A photograph of subpixel display elements on a laptop's LCD screen ![]()
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