[Geotiff] please help me it is very urgent.

[Rob Comer]

Hi Dibyendu,

You can get the northing and easting if you place the image into a figure using the MAPSHOW function and the referencing matrix returned by GEOTIFFREAD.  This will set the XData and YData of the image to correspond to map coordinates rather than default image coordinates.  For example,

>> [A,R,bbox] = geotiffread('boston.tif');
>> mapshow(A,R)
>> pixval on

(Actually, you should use IMPIXELINFO instead of PIXVAL, if you have it, but I'm not sure offhand if it's part of R2006a or if it came later.)

Regards,
Rob Comer


-----Original Message-----
From: geotiff-bounces at lists.maptools.org on behalf of Dibyendu Ghosh
Sent: Mon 1/21/2008 7:56 AM
To: geotiff at lists.maptools.org
Subject: [Geotiff] please help me it is very urgent.
 
Hello,


I have files with extension *.aux, *.tiff, *.rrd and *.xml. Using
"geotiffread" function in  MATLAB (2006a) I am able to read the tiff image
as a grey scale image. Using "pixval" function in MATLAB, I am getting only
x,y and corresponding pixel value but I need the northing and  easting
values.



Is it possible to get the information form these files?

Please reply me it is very urgent.
Thanks in advance

-- 
Dibyendu Ghosh
Master Degree
IIT-Kharagpur-721302