Hello
I am trying to import a multiband geotiff into GRASS 7.0.3 (running on Ubuntu 16.01). The gdalinfo output shows the 4 bands, and their data ranges. Both my geotiff and my GRASS location are in the projection UTM Zone 13N, WGS84 (epsg:32613). My GRASS region is 0.5 meters to import a panchromatic band, but the 4 bands in the multiband file are 2.0 m resolution. After I import, the data ranges of the 4 new grass rasters are very different from those listed in the gdalinfo output below.
gdalinfo o10APR11180709-M2AS-055552078010_01_P001.tif
Driver: GTiff/GeoTIFF
Files: o10APR11180709-M2AS-055552078010_01_P001.tif
o10APR11180709-M2AS-055552078010_01_P001.tif.aux.xml
Size is 3534, 2684
Coordinate System is:
PROJCS["WGS 84 / UTM zone 13N",
GEOGCS["WGS 84",
DATUM["WGS_1984",
SPHEROID["WGS 84",6378137,298.257223563,
AUTHORITY["EPSG","7030"]],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich",0],
UNIT["degree",0.0174532925199433],
AUTHORITY["EPSG","4326"]],
PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",0],
PARAMETER["central_meridian",-105],
PARAMETER["scale_factor",0.9996],
PARAMETER["false_easting",500000],
PARAMETER["false_northing",0],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]],
AUTHORITY["EPSG","32613"]]
Origin = (318626.000000000000000,3848648.000000000000000)
Pixel Size = (2.000000000000000,-2.000000000000000)
Metadata:
AREA_OR_POINT=Area
TIFFTAG_ARTIST=PCI
TIFFTAG_DATETIME=2010:04:11 18:07:09
TIFFTAG_SOFTWARE=PCI Geomatica
Image Structure Metadata:
INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left ( 318626.000, 3848648.000) (106d58'54.51"W, 34d45'49.98"N)
Lower Left ( 318626.000, 3843280.000) (106d58'50.35"W, 34d42'55.81"N)
Upper Right ( 325694.000, 3848648.000) (106d54'16.62"W, 34d45'54.41"N)
Lower Right ( 325694.000, 3843280.000) (106d54'12.63"W, 34d43' 0.24"N)
Center ( 322160.000, 3845964.000) (106d56'33.53"W, 34d44'25.13"N)
Band 1 Block=3534x2 Type=UInt16, ColorInterp=Red
Min=145.000 Max=473.000
Minimum=145.000, Maximum=473.000, Mean=286.443, StdDev=29.355
NoData Value=0
Metadata:
STATISTICS_MAXIMUM=473
STATISTICS_MEAN=286.44285428343
STATISTICS_MINIMUM=145
STATISTICS_STDDEV=29.354503358529
Band 2 Block=3534x2 Type=UInt16, ColorInterp=Green
Min=150.000 Max=771.000
Minimum=150.000, Maximum=771.000, Mean=447.144, StdDev=61.481
NoData Value=0
Metadata:
STATISTICS_MAXIMUM=771
STATISTICS_MEAN=447.14438693812
STATISTICS_MINIMUM=150
STATISTICS_STDDEV=61.481469436348
Band 3 Block=3534x2 Type=UInt16, ColorInterp=Blue
Min=116.000 Max=940.000
Minimum=116.000, Maximum=940.000, Mean=566.192, StdDev=92.234
NoData Value=0
Metadata:
STATISTICS_MAXIMUM=940
STATISTICS_MEAN=566.19172957414
STATISTICS_MINIMUM=116
STATISTICS_STDDEV=92.234459276031
Band 4 Block=3534x2 Type=UInt16, ColorInterp=Undefined
NoData Value=0
My outputs from r.info for the 4 imported bands are below...Why are the data ranges not correct??
+----------------------------------------------------------------------------+
| Map: o10APR11180709_M2AS_055552078 Date: Wed Aug 10 14:21:20 2016 |
| Mapset: worldview2 Login of Creator: wilbur |
| Location: PotteryMound |
| DataBase: /home/wilbur/grass_data |
| Title: ( o10APR11180709_M2AS_055552078010_01_P001.1 ) |
| Timestamp: none |
|----------------------------------------------------------------------------|
| |
| Type of Map: raster Number of Categories: 0 |
| Data Type: CELL |
| Rows: 2684 |
| Columns: 3534 |
| Total Cells: 9485256 |
| Projection: UTM (zone 13) |
| N: 3848648 S: 3843280 Res: 2 |
| E: 325694 W: 318626 Res: 2 |
| Range of data: min = 133 max = 780 |
| |
| Data Description: |
| generated by r.in.gdal |
| |
| Comments: |
| r.in.gdal -k input="/home/wilbur/Rio_Abajo_Active/isleta_pottery_mou\ |
| nd/WorldView/WorldView-2_Image_Data/GeoTIFF_16-Bit/o10APR11180709-M2\ |
| AS-055552078010_01_P001.tif" output="o10APR11180709_M2AS_05555207801\ |
| 0_01_P001" memory=300 offset=0 |
| |
+----------------------------------------------------------------------------+
| Map: o10APR11180709_M2AS_055552078 Date: Wed Aug 10 14:21:20 2016 |
| Mapset: worldview2 Login of Creator: wilbur |
| Location: PotteryMound |
| DataBase: /home/wilbur/grass_data |
| Title: ( o10APR11180709_M2AS_055552078010_01_P001.2 ) |
| Timestamp: none |
|----------------------------------------------------------------------------|
| |
| Type of Map: raster Number of Categories: 0 |
| Data Type: CELL |
| Rows: 2684 |
| Columns: 3534 |
| Total Cells: 9485256 |
| Projection: UTM (zone 13) |
| N: 3848648 S: 3843280 Res: 2 |
| E: 325694 W: 318626 Res: 2 |
| Range of data: min = 119 max = 1193 |
| |
| Data Description: |
| generated by r.in.gdal |
| |
| Comments: |
| r.in.gdal -k input="/home/wilbur/Rio_Abajo_Active/isleta_pottery_mou\ |
| nd/WorldView/WorldView-2_Image_Data/GeoTIFF_16-Bit/o10APR11180709-M2\ |
| AS-055552078010_01_P001.tif" output="o10APR11180709_M2AS_05555207801\ |
| 0_01_P001" memory=300 offset=0 |
| |
+----------------------------------------------------------------------------+
| Map: o10APR11180709_M2AS_055552078 Date: Wed Aug 10 14:21:20 2016 |
| Mapset: worldview2 Login of Creator: wilbur |
| Location: PotteryMound |
| DataBase: /home/wilbur/grass_data |
| Title: ( o10APR11180709_M2AS_055552078010_01_P001.3 ) |
| Timestamp: none |
|----------------------------------------------------------------------------|
| |
| Type of Map: raster Number of Categories: 0 |
| Data Type: CELL |
| Rows: 2684 |
| Columns: 3534 |
| Total Cells: 9485256 |
| Projection: UTM (zone 13) |
| N: 3848648 S: 3843280 Res: 2 |
| E: 325694 W: 318626 Res: 2 |
| Range of data: min = 59 max = 1176 |
| |
| Data Description: |
| generated by r.in.gdal |
| |
| Comments: |
| r.in.gdal -k input="/home/wilbur/Rio_Abajo_Active/isleta_pottery_mou\ |
| nd/WorldView/WorldView-2_Image_Data/GeoTIFF_16-Bit/o10APR11180709-M2\ |
| AS-055552078010_01_P001.tif" output="o10APR11180709_M2AS_05555207801\ |
| 0_01_P001" memory=300 offset=0 |
| |
+----------------------------------------------------------------------------+
+----------------------------------------------------------------------------+
| Map: o10APR11180709_M2AS_055552078 Date: Wed Aug 10 14:21:20 2016 |
| Mapset: worldview2 Login of Creator: wilbur |
| Location: PotteryMound |
| DataBase: /home/wilbur/grass_data |
| Title: ( o10APR11180709_M2AS_055552078010_01_P001.4 ) |
| Timestamp: none |
|----------------------------------------------------------------------------|
| |
| Type of Map: raster Number of Categories: 0 |
| Data Type: CELL |
| Rows: 2684 |
| Columns: 3534 |
| Total Cells: 9485256 |
| Projection: UTM (zone 13) |
| N: 3848648 S: 3843280 Res: 2 |
| E: 325694 W: 318626 Res: 2 |
| Range of data: min = 50 max = 1341 |
| |
| Data Description: |
| generated by r.in.gdal |
| |
| Comments: |
| r.in.gdal -k input="/home/wilbur/Rio_Abajo_Active/isleta_pottery_mou\ |
| nd/WorldView/WorldView-2_Image_Data/GeoTIFF_16-Bit/o10APR11180709-M2\ |
| AS-055552078010_01_P001.tif" output="o10APR11180709_M2AS_05555207801\ |
| 0_01_P001" memory=300 offset=0 |
| |
Thanks!!