>Print size? 48"x 24" is a bit of a funny size. My print co. uses 24"x >20" or 30" x 20" for laser colour printing which might be better size. > >However, back to the question. > >First thing, Gimp is a raster editor and works in pixels which have >little to do with physical size *until* you come to print. Then a >property pixels-per-inch (ppi aka dpi) comes into play. > >The ppi to use for a poster size is not the same as a 6" x 4" >photograph. Check this chart which gives advice for ppi vs. viewing >distance. > >http://resources.printhandbook.com/pages/viewing-distance-dpi.php > >Quite a conservative value for a large poster size might be 150 ppi. > >Back to your photograph: > >I would possibly straight up the horizon first but for this example. > >The aspect ratio is not 48:24 (2:1) so the image needs to be cropped. >That is a matter of preference but might look like this. >https://i.imgur.com/PM20bUL.jpg > >Then scale the image to the required pixel size. Image -> Scale image. > >At 150 ppi the image size is 7200 x 3600 pix, but you can set units in >Gimp like this. https://i.imgur.com/oP36GhJ.jpg Use NoHalo as the >interpolation method. You get a warning about size but it is just a >warning. Some operations will a little longer just be careful. > >Now is the time to tweak colours etc, but for a beginner that is a >whole different question. > >The final operation is always sharpening (if required) I would use >Filters -> Enhance -> Unsharp Mask and again the amount you use >depends on preference. Too much looks very artificial. Small value >like this. https://i.imgur.com/msg2H1F.jpg > >Then stand back to check. https://i.imgur.com/oHfExbT.jpg
Thank you for the indepth information. I hung on for most of it comprehension-wise, then you lost me. Sorry! The reason for the large size is because the wall we are putting it on is 7-feet wide. -- nickib (via www.gimpusers.com/forums) _______________________________________________ gimp-user-list mailing list List address: gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
