[gdal-dev] Using GDAL with KOMPSAT-2 images

2010-05-26 Thread Luis Lisboa 
Greetings

While I was importing to GRASS some KOMPSAT-2 images I got a few warnings.
Then, I decided to do some GDALINFO over those Kompsat-2 images and I got
the following warnings:

Warning 1: TIFFFetchNormalTag:ASCII value for tag DocumentName does not
end in null byte
Warning 1: TIFFFetchNormalTag:ASCII value for tag ImageDescription does
not end in null byte
Warning 1: TIFFFetchNormalTag:ASCII value for tag Artist does not end in
null byte
Warning 1: TIFFFetchNormalTag:ASCII value for tag HostComputer does not
end in null byte

And only after this I got the gdalinfo response:
Driver: GTiff/GeoTIFF
Files: MSC_090905125514_16582_25480940M3P07N_1G.tif
Size is 4551, 4663
Coordinate System is:
PROJCS[WGS 84 / UTM zone 24S,
GEOGCS[WGS_1984,
DATUM[WGS_1984,
SPHEROID[WGS 84,6378137,298.2572235604902,
AUTHORITY[EPSG,7030]],
AUTHORITY[EPSG,6326]],
PRIMEM[Greenwich,0],
UNIT[,0.0174532925199433]],
PROJECTION[Transverse_Mercator],
PARAMETER[latitude_of_origin,0],
PARAMETER[central_meridian,-39],
PARAMETER[scale_factor,0.9996],
PARAMETER[false_easting,50],
PARAMETER[false_northing,1000],
UNIT[metre,1,
AUTHORITY[EPSG,9001]],
AUTHORITY[EPSG,32724]]
Origin = (602410.721905449754559,9118774.368212059140205)
Pixel Size = (4.000,-4.000)
Metadata:
  TIFFTAG_DOCUMENTNAME=MSC_090905125514_16582_25480940M3P07N_1G.tif
  TIFFTAG_IMAGEDESCRIPTION=GeoTIFF v1.0 : KOMPSAT2 MSC Image Level 1G
Product Level 1G
  TIFFTAG_DATETIME=2009:09:05 12:56:16
  TIFFTAG_ARTIST=Received IRPE NULL Location 0.00/0.00 Processing
TLS Location 43.60/1.44
  TIFFTAG_HOSTCOMPUTER=Producer background SW version CAP 1.0.091126.01
  TIFFTAG_XRESOLUTION=1
  TIFFTAG_YRESOLUTION=1
  TIFFTAG_MINSAMPLEVALUE=0
  TIFFTAG_MAXSAMPLEVALUE=1100
  TIFFTAG_RESOLUTIONUNIT=1 (unitless)
  AREA_OR_POINT=Point
Image Structure Metadata:
  INTERLEAVE=BAND
Corner Coordinates:
Upper Left  (  602410.722, 9118774.368) ( 38d 4'14.81W,  7d58'16.21S)
Lower Left  (  602410.722, 9100122.368) ( 38d 4'13.43W,  8d 8'23.51S)
Upper Right (  620614.722, 9118774.368) ( 37d54'20.26W,  7d58'14.75S)
Lower Right (  620614.722, 9100122.368) ( 37d54'18.62W,  8d 8'22.02S)
Center  (  611512.722, 9109448.368) ( 37d59'16.78W,  8d 3'19.15S)
Band 1 Block=4551x1 Type=UInt16, ColorInterp=Gray
  Metadata:
LAYER_TYPE=athematic

What this warnings refer to? is this a critical issue?

Thanks

Best regards,
Luis
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Re: [gdal-dev] Using GDAL with KOMPSAT-2 images

2010-05-26 Thread Frank Warmerdam 

Luis Lisboa wrote:

Greetings

While I was importing to GRASS some KOMPSAT-2 images I got a few 
warnings. Then, I decided to do some GDALINFO over those Kompsat-2 
images and I got the following warnings:


Warning 1: TIFFFetchNormalTag:ASCII value for tag DocumentName does 
not end in null byte
Warning 1: TIFFFetchNormalTag:ASCII value for tag ImageDescription 
does not end in null byte
Warning 1: TIFFFetchNormalTag:ASCII value for tag Artist does not end 
in null byte
Warning 1: TIFFFetchNormalTag:ASCII value for tag HostComputer does 
not end in null byte

...

What this warnings refer to? is this a critical issue?



Luis,

This is not a critical error, only a warning.  However, if you are in
contact with the data producer you might encourage them to bring their
TIFF production into agreement with the specification which requires
that the last byte of these text items should be a zero byte.

Best regards,
--
---+--
I set the clouds in motion - turn up   | Frank Warmerdam, warmer...@pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush| Geospatial Programmer for Rent

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