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Thus, for example, a 10-point font on a Macintosh (at 72 PPI) was represented with 10 pixels (i.e., 10 PPEm), whereas a 10-point font on a Windows platform (at 96 PPI) at the same zoom level is represented with 13 pixels (i.e., Microsoft rounded 13 + 1 ⁄ 3 to 13 pixels, or 13 PPEm) – and, on a typical consumer grade monitor, would have ...
Lines per inch (LPI) is a measurement of printing resolution. A line consists of halftones that is built up by physical ink dots made by the printer device to create different tones.
The term resolution is often considered equivalent to pixel count in digital imaging, though international standards in the digital camera field specify it should instead be called "Number of Total Pixels" in relation to image sensors, and as "Number of Recorded Pixels" for what is fully captured.
So he scales them to what he perceives as "72 DPI" by going into Photoshop's "scale image" feature, choosing an 8x8-inch size, and "72 DPI". Photoshop scales the iamge to 576x576 pixels, and voila! The image looks good on the computer screen, without scrolling way off the edge. Again, I've no idea if this is the way it happened.
The resolution of computer screens is often denoted in millimetres pitch, whereas office printers are usually denoted reciprocally in dots per inch ('dpi', 'd/in'). Phototypesetters have long used micrometres. To convert dpi resolution to μm resolution, the formula to be used is 25400 ⁄ R, where R is the resolution in dpi. So for example 96 ...
Modern inkjet printers can print microscopic dots at any location, and don't require a screen grid, with the metric dots per inch (DPI). These are both different from pixel density or pixels per inch (PPI) because a pixel is a single sample of any color, whereas an inkjet print can only print a dot of a specific color either on or off.
The resolution of flatbed printers range from 72 DPI (dots per inch) to about 2400 DPI. One of the advantages of a flatbed printer is its versatility of printable materials although this is limited to only flat materials and occupies a lot of surface area.
The MX-80 combined affordability with good-quality text output (for its time). Early impact printers (including the MX) were notoriously loud during operation, a result of the hammer-like mechanism in the print head. The MX-80's low dot density (60 dpi horizontal, 72 dpi vertical) produced printouts of a distinctive "computerized" quality.