I already tried this step:
$ gdal_translate -of ENVI -ot Byte -scale File.tif Prova.raw
Input file size is 1828, 1646
0...10...20...30...40...50...60...70...80...90...100 - done.
$ gdalinfo -stats prova.raw
Driver: ENVI/ENVI .hdr Labelled
Files: prova.raw
prova.raw.aux.xml
prova.hdr
Size is 1828, 1646
Coordinate System is:
PROJCS["UTM Zone 47, Southern Hemisphere",
GEOGCS["WGS 84",
DATUM["WGS_1984",
SPHEROID["WGS 84",6378137,298.257223563,
AUTHORITY["EPSG","7030"]],
TOWGS84[0,0,0,0,0,0,0],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,
AUTHORITY["EPSG","9108"]],
AUTHORITY["EPSG","4326"]],
PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",0],
PARAMETER["central_meridian",99],
PARAMETER["scale_factor",0.9996],
PARAMETER["false_easting",500000],
PARAMETER["false_northing",10000000],
UNIT["Meter",1]]
Origin = (650301.875000000000000,9895384.375000000000000)
Pixel Size = (1.250000000000000,-1.250000000000000)
Metadata:
Band_1=Band 1
TIFFTAG_XRESOLUTION=1
TIFFTAG_YRESOLUTION=1
AREA_OR_POINT=Area
Image Structure Metadata:
INTERLEAVE=BAND
Corner Coordinates:
Upper Left ( 650301.875, 9895384.375) (100d21' 2.82"E, 0d56'46.41"S)
Lower Left ( 650301.875, 9893326.875) (100d21' 2.84"E, 0d57'53.40"S)
Upper Right ( 652586.875, 9895384.375) (100d22'16.73"E, 0d56'46.38"S)
Lower Right ( 652586.875, 9893326.875) (100d22'16.76"E, 0d57'53.37"S)
Center ( 651444.375, 9894355.625) (100d21'39.79"E, 0d57'19.89"S)
Band 1 Block=1828x1 Type=Byte, ColorInterp=Undefined
Description = Band 1
Minimum=0.000, Maximum=255.000, Mean=2.364, StdDev=3.013
Metadata:
STATISTICS_MINIMUM=0
STATISTICS_MAXIMUM=255
STATISTICS_MEAN=2.3638978918458
STATISTICS_STDDEV=3.0127939567847
And the results from ENVI is:
$ gdalinfo -stats fromENVI.raw
Driver: ENVI/ENVI .hdr Labelled
Files: fromENVI.raw
fromENVI.raw.hdr
Size is 1828, 1646
Coordinate System is:
PROJCS["UTM Zone 47, Southern Hemisphere",
GEOGCS["WGS 84",
DATUM["WGS_1984",
SPHEROID["WGS 84",6378137,298.257223563,
AUTHORITY["EPSG","7030"]],
TOWGS84[0,0,0,0,0,0,0],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,
AUTHORITY["EPSG","9108"]],
AUTHORITY["EPSG","4326"]],
PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",0],
PARAMETER["central_meridian",99],
PARAMETER["scale_factor",0.9996],
PARAMETER["false_easting",500000],
PARAMETER["false_northing",10000000],
UNIT["Meter",1]]
Origin = (650301.875000000000000,9895384.375000000000000)
Pixel Size = (1.250000000000000,-1.250000000000000)
Metadata:
Band_1=Gray Scale (Band 1:File.tif)
Image Structure Metadata:
INTERLEAVE=BAND
Corner Coordinates:
Upper Left ( 650301.875, 9895384.375) (100d21' 2.82"E, 0d56'46.41"S)
Lower Left ( 650301.875, 9893326.875) (100d21' 2.84"E, 0d57'53.40"S)
Upper Right ( 652586.875, 9895384.375) (100d22'16.73"E, 0d56'46.38"S)
Lower Right ( 652586.875, 9893326.875) (100d22'16.76"E, 0d57'53.37"S)
Center ( 651444.375, 9894355.625) (100d21'39.79"E, 0d57'19.89"S)
Band 1 Block=1828x1 Type=Byte, ColorInterp=Undefined
Description = Gray Scale (Band 1:File.tif)
Minimum=0.000, Maximum=255.000, Mean=53.375, StdDev=48.454
Metadata:
STATISTICS_MINIMUM=0
STATISTICS_MAXIMUM=255
STATISTICS_MEAN=53.374992023631
STATISTICS_STDDEV=48.454042778451
Looking at the histogram seems that ENVI do a conversion using a kind of
equalize scale. Do you know where I can find the method that ENVI use? I
have searched a lot without solution and seems that I'm the only one with
this problem! Very strange!
--
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