On Thu, Feb 7, 2008 at 5:06 AM, Alexander E. Patrakov <[EMAIL PROTECTED]> wrote: > Hello Zack, > > The -DDOINTERPOLATE Ghostscript option was added to Evince at my > request, logged as the following GNOME bug report (now closed): [...]
Thanks for the counterexample. I agree that your file is rendered better with -dDOINTERPOLATE / equivalent behavior from the PDF renderer (I care about consistency between PDF and PS renderers as well as the behavior of each). Have you looked at my test cases? Do you agree that those are rendered better without interpolation? I think this is going to have to get fixed inside the renderers, because a document could easily have some images that should be interpolated and others that shouldn't; a global toggle (even if accessible in the UI) is not good enough. The heuristic that comes to mind is to enable interpolation only for images that are not being scaled up by more than 10% or so of their natural size. My test cases, and the other test cases in the Gnome bug to which this was forwarded, involve low-resolution bitmaps representing mathematical objects, scaled to large multiples of their natural size; it is very important to have sharp lines in that case. zw -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
