gdalinfo Man page

gdalinfo General Commands Manual gdalinfo

NAME

gdalinfo – gdalinfo lists information about a raster dataset

SYNOPSIS

gdalinfo [–help-general] [-mm] [-stats] [-hist] [-nogcp] [-nomd] [-norat] [-noct] [-nofl] [-checksum] [-proj4] [-listmdd] [-mdd domain|`all`]*
[-sd subdataset] datasetname

DESCRIPTION

The gdalinfo program lists various information about a GDAL supported
raster dataset.

-mm
Force computation of the actual min/max values for each band in the
dataset.

-stats
Read and display image statistics. Force computation if no
statistics are stored in an image.

-approx_stats
Read and display image statistics. Force computation if no
statistics are stored in an image. However, they may be computed
based on overviews or a subset of all tiles. Useful if you are in a
hurry and don’t want precise stats.

-hist
Report histogram information for all bands.

-nogcp
Suppress ground control points list printing. It may be useful for
datasets with huge amount of GCPs, such as L1B AVHRR or HDF4 MODIS
which contain thousands of them.

-nomd
Suppress metadata printing. Some datasets may contain a lot of
metadata strings.

-nrat
Suppress printing of raster attribute table.

-noct
Suppress printing of color table.

-checksum
Force computation of the checksum for each band in the dataset.

-listmdd
(GDAL >= 1.11) List all metadata domains available for the dataset.

-mdd domain
Report metadata for the specified domain. Starting with GDAL 1.11,
‘all’ can be used to report metadata in all domains

-nofl
(GDAL >= 1.9.0) Only display the first file of the file list.

-sd subdataset
(GDAL >= 1.9.0) If the input dataset contains several subdatasets
read and display a subdataset with specified number (starting from
1). This is an alternative of giving the full subdataset name.

-proj4
(GDAL >= 1.9.0) Report a PROJ.4 string corresponding to the file’s
coordinate system.

The gdalinfo will report all of the following (if known):

· The format driver used to access the file.
· Raster size (in pixels and lines).
· The coordinate system for the file (in OGC WKT).
· The geotransform associated with the file (rotational coefficients
are currently not reported).
· Corner coordinates in georeferenced, and if possible lat/long based
on the full geotransform (but not GCPs).
· Ground control points.
· File wide (including subdatasets) metadata.
· Band data types.
· Band color interpretations.
· Band block size.
· Band descriptions.
· Band min/max values (internally known and possibly computed).
· Band checksum (if computation asked).
· Band NODATA value.
· Band overview resolutions available.
· Band unit type (i.e.. ‘meters’ or ‘feet’ for elevation bands).
· Band pseudo-color tables.
EXAMPLE
gdalinfo ~/openev/utm.tif
Driver: GTiff/GeoTIFF
Size is 512, 512
Coordinate System is:
PROJCS[“NAD27 / UTM zone 11N”,
GEOGCS[“NAD27”,
DATUM[“North_American_Datum_1927”,
SPHEROID[“Clarke 1866”,6378206.4,294.978698213901]],
PRIMEM[“Greenwich”,0],
UNIT[“degree”,0.0174532925199433]],
PROJECTION[“Transverse_Mercator”],
PARAMETER[“latitude_of_origin”,0],
PARAMETER[“central_meridian”,-117],
PARAMETER[“scale_factor”,0.9996],
PARAMETER[“false_easting”,500000],
PARAMETER[“false_northing”,0],
UNIT[“metre”,1]] Origin = (440720.000000,3751320.000000)
Pixel Size = (60.000000,-60.000000)
Corner Coordinates:
Upper Left ( 440720.000, 3751320.000) (117d38’28.21″W, 33d54’8.47″N)
Lower Left ( 440720.000, 3720600.000) (117d38’20.79″W, 33d37’31.04″N)
Upper Right ( 471440.000, 3751320.000) (117d18’32.07″W, 33d54’13.08″N)
Lower Right ( 471440.000, 3720600.000) (117d18’28.50″W, 33d37’35.61″N)
Center ( 456080.000, 3735960.000) (117d28’27.39″W, 33d45’52.46″N)
Band 1 Block=512×16 Type=Byte, ColorInterp=Gray
AUTHORS
Frank Warmerdam warmerdam@pobox.com, Silke Reimer silke@intevation.de

GDAL Tue Apr 5 2016 gdalinfo

Ils en parlent aussi

GDAL raster data tips and tricks – GFOSS Blog | GRASS GIS Courses