The Technology of Generating, Displaying and Drawing Graphics by Computer
usecomputerThe technology of generating, displaying and drawing graphics is called computer graphics technology.The graphics in the computer are also expressed in the form of data. To display the graphics or draw and print, the data must be converted into lines.Computer graphics technology can not only produce a large number of mechanical drawings, architectural drawingsCircuit diagramAnd geographical maps, etc., become an important part of computer-aided design, and can produce motion graphics and three-dimensional graphics, so that the original drawing can not be achieved.
Because of the visual image of graphics, it is often used as a human-computer interaction mode for various applications.A variety of regular graphics libraries have been developed, ranging from flat plate plotters to roller plotters, scanner, mouse andLight penThe computer graphics technology has been increasingly widely used in the software and hardware environment.
Computer image processing is the process of receiving, extracting information, processing transformation, pattern recognition, storage and display of optical images by computer.Via CCD（Charge coupled device）Such optoelectronic devices directly receive optical information and digitize it;It can also read films and photos containing optical image information to extract optical information and realize digitization.Once the computer has acquired opticsimageWith sufficient information, image enhancement, compression, restoration, segmentation and recognition can be carried out.The pattern recognition method is used to identify the fuzzyimage, can eliminate interference, enhance contrast, and make it clear and impressive.Computer image processing technology was first used in ground satellite remote sensingMeteorological forecastIt has developed rapidly in the analysis and display of medical laboratory images, and has been widely used in automatic production control, crime evidence identification and even clothing hairstyle design.
