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Image credits: Old-time Photos To learn more about the fascinating world of photography from the past, we got in touch with Ed Padmore, founder of Vintage Photo Lab.Ed was kind enough to have a ...
Dots per inch (DPI, or dpi [1]) is a measure of spatial printing, video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch (2.54 cm).
A raster scan, or raster scanning, is the rectangular pattern of image capture and reconstruction in television. By analogy, the term is used for raster graphics , the pattern of image storage and transmission used in most computer bitmap image systems.
DPI enables IT administrators and security officials to set policies and enforce them at all layers, including the application and user layer to help combat those threats. [10] [11] Deep Packet Inspection is able to detect a few kinds of buffer overflow attacks. DPI may be used by enterprise for Data Leak Prevention (DLP). When an e-mail user ...
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In September 1997, HP introduced the host-based LaserJet 6L, which could print 600 dpi text at up to six pages per minute for only US$400. [17] 1200 dpi printers have been widely available in the home market since 2008. 2400 dpi electrophotographic printing plate makers, essentially laser printers that print on plastic sheets, are also available.
Explicit DPI (PPI) for rasterized images, fonts or effects GIF: Pixel Raster Yes No No No ICO: Pixel Raster Yes Yes No No JPEG: Pixel Raster No Implicit when density is set Optional PPI or PPCM, 2 bytes each for horizontal and vertical directions [26] PDF: Length Both Yes Yes Explicit Explicit DPI (PPI) for rasterized images, fonts or effects ...