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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'>One more thing you may want to use the luminance
formula instead of .33 to convert your imagery to grayscale. This is based on
how humans perceive color:<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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style='font-size:12.0pt;font-family:Verdana;color:#004080'>Y=0.3RED+0.59GREEN+0.11Blue<o:p></o:p></span></font></p>
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style='font-size:12.0pt;font-family:Verdana;color:#004080'><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><st1:PersonName w:st="on">Ethan Alpert</st1:PersonName><br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, August 06, 2007
12:28 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Todd Fagin;
gdal-dev@lists.maptools.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Gdal-dev] FCC to
gray scale</span></font><o:p></o:p></p>
</div>
<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=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I just went through this process.
You’ll need to use the GDAL api. I used the perl bindings. Attached is my
script.<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'><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'>Hope this helps,<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>Todd Fagin<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, August 06, 2007
12:00 PM<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] FCC to gray
scale</span></font><o:p></o:p></p>
</div>
<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 face="Trebuchet MS"><span style='font-size:
10.0pt;font-family:"Trebuchet MS"'>Does anyone know of if there is a GDAL
utility (such as gdal_translate) that will allow you to go from a multi-band
false color composite to a grayscale?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Trebuchet MS"><span style='font-size:
10.0pt;font-family:"Trebuchet MS"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Trebuchet MS"><span style='font-size:
10.0pt;font-family:"Trebuchet MS"'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Trebuchet MS"><span style='font-size:
10.0pt;font-family:"Trebuchet MS"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Trebuchet MS"><span
style='font-size:10.0pt;font-family:"Trebuchet MS";color:navy'>Todd Fagin</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Trebuchet MS"><span
style='font-size:10.0pt;font-family:"Trebuchet MS";color:navy'>Coordinate Solutions,
Inc.</span></font><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
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"Trebuchet MS";color:navy'>501 N.E. 15th St</span></font></st1:address></st1:Street><font
size=2 color=navy face="Trebuchet MS"><span style='font-size:10.0pt;font-family:
"Trebuchet MS";color:navy'>.</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
color=navy face="Trebuchet MS"><span style='font-size:10.0pt;font-family:
"Trebuchet MS";color:navy'>Oklahoma City</span></font></st1:City><font
size=2 color=navy face="Trebuchet MS"><span style='font-size:10.0pt;
font-family:"Trebuchet MS";color:navy'>, <st1:State w:st="on">OK</st1:State> <st1:PostalCode
w:st="on">73104</st1:PostalCode></span></font></st1:place><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Trebuchet MS"><span
style='font-size:10.0pt;font-family:"Trebuchet MS";color:navy'>405.740.4324
(voice)</span></font><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Trebuchet MS"><span
style='font-size:10.0pt;font-family:"Trebuchet MS";color:navy'>904.471.5548
(fax)</span></font><font color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Trebuchet MS"><span
style='font-size:10.0pt;font-family:"Trebuchet MS";color:navy'>www.coordinatesolutions.com<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Trebuchet MS"><span
style='font-size:10.0pt;font-family:"Trebuchet MS";color:navy'><o:p> </o:p></span></font></p>
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