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interconnecting the various components that make up the imaging system. The technology in each component area is developing at a rapid rate. With the ever-increasing number of hardware components and software packages available on the market, setting up the links between the devices can become frustrating. Before choosing new components for a system, you must look carefully at each piece of new equipment to be sure it is compatible with the existing system. or still-video cameras, or you can scan and digitize existing film and paper images. must be converted to digital values. Images that are imported from a still-video camera are in analog waveform. An analog waveform is a value that varies continuously over time (fig. 3-4). For an analog the time must be changed into noncontinuous, numeric values of ones and zeros (fig. 3-5). The process used to determine time is called sampling. Sampling is done at equal increments of time. Conversion of continuous values into distinct values is called QUANTITIZING. The combined process is called analog-to-digital conversion (A/D conversion) or DIGITIZING. representation of the signal results. When the sampling rate is high, virtually an exact copy of the original signal green, and blue information is handled as three separate sets of data to produce three sets of digital information. is done simultaneously. resolution of the display system is low, the individual is called pixelation. electronic-imaging workstation instantly. The features on these cameras are basically the same, and they are used in the same manner as conventional cameras. The depending on the camera. manual, depending on the camera. (CCD), is the main component of an electronic camera. the CCD, the more pixels it can record, thus the higher the resolution. However, the resolution quality and the exposure range of an electronic camera is not as great Advanced Photography Course |
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