Abstract
Image-output devices fall into two major categories: printing (or hardcopy) devices and display (or softcopy) devices. The image-printing category includes traditional ink presses, photographic printers, and dye-sublimation, thermal, laser, and ink-jet printers—any method for depositing a passive image onto a 2-D medium. Some of these devices are capable of producing transparencies but most are used to produce reflective prints. The image-display category includes traditional cathode-ray tubes (CRTs), liquid crystal display (LCD) flat-panel displays, and LCD and digital light processing (DLP) projectors—any method for the interactive display of imagery on a 2-D interface. Most, but not all, display devices include an integrated light source, whereas printed output usually relies on ambient illumination. In general, hardcopy output is static and passive and softcopy output is dynamic and active. The challenges for presenting high-dynamic-range (HDR) imagery within these two classes are quite different. This chapter first takes a look at printing devices and then at interactive displays.
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