Stuart McLachlan
stuart at lexacorp.com.pg
Sat Sep 5 17:06:54 CDT 2009
DPI and pixel size are two different things. DPI is a printing *resolution*. ie how many dots will be displayed on each linear inch of the display medium, be it paper, or computer screen (when you talk about projection screens, DPI becomes meaningless). (It can also be the scanning resolution of a scanned image). Pixel size is number of distinct dots in the actualy image. "A 72 dpi file will be much smaller than a 300 dpi". Not if the first one is 2592 x 3872 pixels and the second one is 300 x 300. The difference is that the first one will print out at 26 in x 54 in in size, the other one will print as a 1 inch square. Just found this which will explain it better than I can. http://www.pptxtreme.com/help/psdimport/ResolutionExplainedPixelsDPIInches.html$ -- Stuart On 5 Sep 2009 at 11:37, Susan Harkins wrote: > Yes, I can see where they two might conflict -- you don't want to degrade > the picture within the context of the resulting picture's pixel size -- I > get that -- well, I think I do. > > What I'm wondering is this -- can you even compare dpi resolution to pixel > size, when discussing the actual graphic's size. If you insert a 300 dpi > file, when a 72 dpi will do... does the size of the graphic file matter or > not? A 72 dpi file will be much smaller than a 300 dpi. It should matter. At > least, I thought it did. > > Susan H. > > > Hi Susan > > > > That's what you have the dpi (dots per inch) for: size = dots / dpi > > > > /gustav > > > >>>> ssharkins at gmail.com 05-09-2009 16:13 >>> > > I am pixel challenged... how can an image's pixel size be anything but its > > display size? > > > > Susan H. > > > > > >> He's spot on. DPI is meaningless in this contecxt. Your image should > >> be same pixel size > >> as its display size. Anything else and the display needs to interpolate > >> pixels. > > > > > > _______________________________________________ > > dba-Tech mailing list > > dba-Tech at databaseadvisors.com > > http://databaseadvisors.com/mailman/listinfo/dba-tech > > Website: http://www.databaseadvisors.com > > _______________________________________________ > dba-Tech mailing list > dba-Tech at databaseadvisors.com > http://databaseadvisors.com/mailman/listinfo/dba-tech > Website: http://www.databaseadvisors.com