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September 2009
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2009.09.14 23:11 "Re: 8-bit JPEG broken in 3.9.x?", by Frank Warmerdam
Bob Friesenhahn wrote: > On Mon, 14 Sep 2009, Dwight Kelly wrote: > >> I am getting strange results with JPEG compression and libtiff 3.9.1. >> Below is a test program. The output for 8-bit JPEG in gray and RGB >> colorspaces are wrong. Instead of horizontal stripes I get a solid color. > > I received your two emails. Double-check how you are building your > test program. If you are on a system which supports it, use 'ldd' to > verify that the correct libraries are being used. Pay close attention > that the correct header files are used. For my first attempt with > your test program, a system provided libtiff was being used rather > than the one I installed. Folks, At my request Dwight has also filed this in bugzilla as: http://bugzilla.maptools.org/show_bug.cgi?id=2097 I also found that things looked fine, though Dwight seems to see a problem with an output file that looks good to me so there may be some sort of viewer sensitivity. Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, warmerdam@pobox.com light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent