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September 2009

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2009.09.14 17:30 "8-bit JPEG broken in 3.9.x?", by Dwight Kelly
2009.09.14 22:25 "Re: 8-bit JPEG broken in 3.9.x?", by Bob Friesenhahn
2009.09.14 23:11 "Re: 8-bit JPEG broken in 3.9.x?", by Frank Warmerdam

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,
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