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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Sean, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>gdal_translate –ot Byte –of JPEG
–scale 0 2048 0 255 source.tif output.jpg<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>BTW, I looked at the imagery you received and
it is clouds over water it’s going to be very difficult to look for
features with such a large dynamic range in the imagery. You would be better
off using PCI or ENVI or some tool that allows you to tweak the color histogram
better than a linear scale.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>-e<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> gdal-dev-bounces@lists.maptools.org
[mailto:gdal-dev-bounces@lists.maptools.org] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Forde, Sean<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, February 02, 2007
10:45 AM<br>
<b><span style='font-weight:bold'>To:</span></b> gdal-dev@lists.maptools.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Gdal-dev] RE: Urgent
help needed with image conversion for the JimGray search</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Friends - can I use gdal_translate to
convert 11bit geotiff to jpeg? Can you tell me the command line arguments?</span></font><o:p></o:p></p>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
owner-software@amazon.com [mailto:owner-software@amazon.com] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Vogels, Werner<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, February 02, 2007
8:50 AM<br>
<b><span style='font-weight:bold'>To:</span></b> software@amazon.com<br>
<b><span style='font-weight:bold'>Cc:</span></b> turk-jim-gray@amazon.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> Urgent help needed with
image conversion for the Jim Gray search</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>As you guys may know computer science icon Jim Gray
disappeared at sea last Sunday, and the Coast Guard has not been able to find
any trace. It is a complete mystery.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>We have started an effort to find him by getting access to
satellite data with the intention to load it into Mechanical Turk, the turk
team has worked deep into the night to make this happen. </span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>We have however hit an obstacle to which we have no
answer: the image format is 16 bit panchromatic with on 11 bits used for
data (tiff). If you view this in a regular viewer it will be pitch black. We'll
need to run a conversion similar to what is described here:</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'><a
href="http://www.eurimage.com/products/qb_photoshop/photoshop.html">http://www.eurimage.com/products/qb_photoshop/photoshop.html</a></span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>to get the images into a spectrum that is usable.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Does any of you know of any automated tools or procedures
that can make this happen?</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Some of the images can be found at: <font color=blue><span
style='color:blue'>internal/~deflaux/JimGray</span></font></span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>--<br>
Werner<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'><a href="http://openphi.net/tenacious/"></a></span></font><o:p></o:p></p>
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