On Friday 15 February 2008 00:44:27 m. allan noah wrote: > you friend would be correct IF sane used a file format which allowed > the storage of the dpi, or exposed this data through some external > means. but, as i said before, sane does not. so, you are going to see > a stretched image.
Of course depending on the frontend, Some do store the resolution in e.g. TIFF files and/or scale the image correctly while embedding into a PS/PDF. > allan > > On 2/14/08, Gernot Hassenpflug <aikishugyo at gmail.com> wrote: > > I cannot find the thread where this was discussed before, but here the > > answer I received from a friend of mine, hopefully it will be useful > > to clear up the confusion surrounding the resolution of scanners! > > > > - The lower figure (1200) is what is called True DPI. This is the more > > important value. It stands for the density of the aligned sensors (the > > more you have the better quality the scan output. This figure > > represents the horizontal scanned resolution. > > > > - The higher figure (2400) stands for the vertical scanned resolution > > and it is the steps the sensors are moving (vertically) in an inch. > > > > -> You confuse the out put which is square inch and therefore always > > has the same horizontal and vertical figures. > > > > I hope that helps, > > Gernot Hassenpflug > > > > > > -- > > sane-devel mailing list: sane-devel at lists.alioth.debian.org > > http://lists.alioth.debian.org/mailman/listinfo/sane-devel > > Unsubscribe: Send mail with subject "unsubscribe your_password" > > to sane-devel-request at lists.alioth.debian.org > > > > > -- > "The truth is an offense, but not a sin" > -- Ren? Rebe - ExactCODE GmbH - Europe, Germany, Berlin Gesch?ftsf?hrer: Susanne Klaus, Ren? Rebe Sitz: Berlin, Amtsgericht Charlottenburg HRB 105 123 B USt-IdNr.: DE251602478 http://exactcode.de | http://t2-project.org | http://rene.rebe.name
