Computer Forums How does resolution, pixels and PPI work

 03-02-2006, 12:52 AM #1 Beta Member   Join Date: Mar 2006 Posts: 1 How does resolution, pixels and PPI work Hey guys, I've been trying to figure out the relationship betwene resolution, pixels and PPI but I just can't figure it out? Can someone please explain to me how it work? Thanks __________________ __________________
 03-02-2006, 01:16 AM #2 BSOD     Join Date: Sep 2005 Posts: 2,519 Re: How does resolution, pixels and PPI work Well resolution indicates how many pixels you have in length and width. For instance lets take the common 1024x768 resolution. This means that you have 1024 pixels long, and 768 pixels wide. Although on the subject of PPI, I'm completely clueless! __________________ __________________
 03-02-2006, 04:28 AM #3 Golden Master     Join Date: Nov 2004 Posts: 13,873 Re: How does resolution, pixels and PPI work PPI: "Pixels Per Inch. The number of pixels per linear inch is used to describe image resolution. A higher ppi means more image detail and correlates to higher image quality. Monitors display images at 72 ppi, inkjet printers require at least 150 ppi to produce photo realistic prints." If you know maths, this is another example: "A resolution factor, which determines the physical size a raster image will be printed or displayed. Given a raster image, which, by definition, is a fixed number of pixels horizontal, by a fixed number of pixels vertical, ppi describes how many of the pixels in the raster image will occur in one inch. For example, a raster image which contains 400 pixels horizontal by 400 pixels vertical will be 1.33" x 1.33" at 300 ppi (400./.300=1.33)" __________________ Abit IP35 Pro / Q6600 G0 / Zalman 9700 / 8800GTS 640mb / 4x 2GB Corsair XMS / X-FI Xtreme M / 1x 1TB / Antec 900 / Logitech Z-5500 / Samsung 20inch