From: Maurizio de Felice" <mdf@global.co.za (Maurizio de Felice)
Date: Sat, 26 Jul 2003 18:31:11 +0200
Subject: [Tiff] Any suggestion on a user friendly utility?
Message-ID: 01da01c35393$569f8a60$e000a8c0@ivana
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Hi,

I use a number of packages for the processing of remote sensing images =
and vectors and I have often to extract tags while processing within =
graphic packages.=20

Till now I just needed to preserve a simple tfw file to maintain the =
georeference.
However I am now handling very large images in a large variety of =
projections some of which which are not north oriented, so a simple tfw =
file is no longer sufficient. More than 3 years ago I did experiment =
with a number of tiff utilities from this site but the fact that they =
had to be operated from the command line and the fact that everytime I =
had to attempt a few times before I could get the correct name of the =
file (most of the files have very long filenames) made me choose Geotiff =
Examine by Mentor which was much more friendly to use.
However this program is very basic and ignores most tags, in particular =
datum, projection and rotation.

Could anyone suggest a Window program if available (and possibly =
freeware) which can store all tags and then put them back into the tiff? =
Ideally I would like the program to be able also to convert non standard =
geotiffs into standrd geotiffs: recently I have had problems getting =
MrSid to compress certain tif files because in non standard format; I =
had to convert them in "planar" tiffs (I am not sure what that means, =
just that I load them in a graphic program such as Corel Photopaint and =
save them) before MrSid was able to compress them. Again I loose most =
info from the geotiff.

By the way: I have another problem. I am working on a large Aster mosaic =
and putting vector info on it. My remote sensing package works fine with =
a rotation angle (roughly 12 degrees), but the GIS package I use =
(Arcview/ArcMap) does not seem to be able to. This means that I have to =
put all the labels by hand in a separate graphic processing package =
(Corel Draw). Any suggestion/advise from anyone?

Thanks

Maurizio




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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<META content=3D"text/html; charset=3Diso-8859-1" =
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<DIV><FONT face=3DArial size=3D2>Hi,</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>I use a number of packages for the =
processing of=20
remote sensing images and vectors and I have often to extract tags while =

processing within graphic packages. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Till now I just needed to preserve a =
simple tfw=20
file to maintain the georeference.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>However I am now handling very large =
images in a=20
large variety of projections some of which which are not north oriented, =

so&nbsp;a simple tfw file is no longer sufficient. More than 3 years ago =
I did=20
experiment with a number of&nbsp;tiff utilities from this site but the =
fact that=20
they had to be operated from the command line and the fact that =
everytime I had=20
to attempt&nbsp;a few times before I could get the correct name of the =
file=20
(most of the files have very long filenames) made me choose&nbsp;Geotiff =
Examine=20
by Mentor which was much&nbsp;more friendly to use.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>However this program is very basic and =
ignores most=20
tags, in particular datum, projection and rotation.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Could anyone suggest a Window program =
if available=20
(and possibly freeware) which can store all tags and then put them back =
into the=20
tiff? Ideally I would&nbsp;like the program to be able also to =
convert&nbsp;non=20
standard geotiffs into standrd geotiffs: recently I have had problems =
getting=20
MrSid to compress certain tif files because in non standard format; =
I&nbsp;had=20
to convert them in "planar" tiffs (I am not sure what that means, just =
that I=20
load them in a graphic program such as Corel Photopaint and save them) =
before=20
MrSid was able to compress them.&nbsp;Again I loose most info from the=20
geotiff.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>By the way: I have another problem. I =
am working on=20
a large Aster mosaic and putting vector info on it. My remote sensing =
package=20
works fine with a rotation angle (roughly 12 degrees), but the GIS =
package I use=20
(Arcview/ArcMap) does not seem to be able to. This means that I have to =
put all=20
the labels by hand in a separate graphic processing package (Corel =
Draw). Any=20
suggestion/advise from anyone?</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Thanks</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Maurizio</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV></BODY></HTML>

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