Analyzing and manipulating images with a computer. Image processing generally involves three steps:
1. Import an image with an optical scanner or directly through digital photography.
2. Manipulate or analyze the image in some way. This stage can include image enhancement and data compression, or the image may be analyzed to find patterns that aren’t visible by the human eye. For example, meteorologists use image processing to analyze satellite photographs.
3. Output the result. The result might be the image altered in some way or it might be a report based on analysis of the image.
- image spam
A new way for cybercriminals to lure users into clicking obfuscated URLs. With image spam the obfuscated URL is hidden in an image rather than text making it more difficult to detect.
A typesetting device that produces very high-resolution output on paper or film. Imagesetters are too expensive for homes or most offices, but you can obtain imagesetter output by bringing a PostScript file to a service bureau. One reason that PostScript has become the standard for desktop publishing is that nearly all imagesetters support it. This […]
- Electronic Commerce (ecommerce)
Often referred to as simply ecommerce (or e-commerce) the phrase is used to describe business that is conducted over the Internet using any of the applications that rely on the Internet, such as e-mail, instant messaging, shopping carts, Web services, UDDI, FTP, and EDI, among others. Electronic commerce can be between two businesses transmitting funds, […]
In the context of virtual reality, the term immersion is used to describe the users’ emotional reaction to the virtual world in terms of feeling as if they are actually a part of the virtual world.
- Impact Printer
Impact printer refers to a class of printers that work by banging a head or needle against an ink ribbon to make a mark on the paper. This includes dot-matrix printers, daisy-wheel printers, and line printers. In contrast, laser and ink-jet printers are nonimpact printers.The distinction is important because impact printers tend to be considerably […]