[Portugal] Converter JP2000 para TIF com transparência

[Marco Afonso]

Boa tarde,

Julgo que a questão será direccionada para os GDAL masters :)

Gostaria de saber se é possível converter um ficheiro no formato JP2000
para TIF com transparência. Se possível definir a côr branco (RGB 255 255
255) para transparência.

Compressão para o ficheiro de saída TIF não é requisito para já.

Segue a informação obtida pelo GDALINFO do ficheiro de origem.

Obrigado! :)

Driver: JP2MrSID/MrSID JPEG2000
Files: pu_luz_zonamento.jp2
       pu_luz_zonamento.jp2.ovr
       pu_luz_zonamento.jp2.aux.xml
Size is 6636, 6122
Coordinate System is:
PROJCS["ETRS_1989_TM06-Portugal",
    GEOGCS["GCS_ETRS_1989",
        DATUM["European_Terrestrial_Reference_System_1989",
            SPHEROID["GRS_1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","6258"]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",39.66825833333333],
    PARAMETER["central_meridian",-8.133108333333333],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]]]
Origin = (37881.833519887965000,-285245.409715688320000)
Pixel Size = (0.169333333333329,-0.169333333333331)
Metadata:
  Corder=PCRL
  GEOTIFF_CHAR__GeogAngularUnitsGeoKey=Angular_Degree
  GEOTIFF_CHAR__GeogGeodeticDatumGeoKey=Datum_European_Reference_System_1989
  GEOTIFF_CHAR__GeographicTypeGeoKey=User-Defined
  GEOTIFF_CHAR__GTModelTypeGeoKey=ModelTypeProjected
  GEOTIFF_CHAR__GTRasterTypeGeoKey=RasterPixelIsArea
  GEOTIFF_CHAR__ProjCoordTransGeoKey=CT_TransverseMercator
  GEOTIFF_CHAR__ProjectedCSTypeGeoKey=User-Defined
  GEOTIFF_CHAR__ProjectionGeoKey=User-Defined
  GEOTIFF_CHAR__ProjLinearUnitsGeoKey=Linear_Meter
  GEOTIFF_NUM__1024__GTModelTypeGeoKey=1
  GEOTIFF_NUM__1025__GTRasterTypeGeoKey=1
  GEOTIFF_NUM__1026__GTCitationGeoKey=PCS Name = ETRS_1989_TM06-Portugal
  GEOTIFF_NUM__2048__GeographicTypeGeoKey=32767
  GEOTIFF_NUM__2049__GeogCitationGeoKey=GCS Name = GCS_ETRS_1989|Ellipsoid
= GRS_1980|Primem = Greenwich|
  GEOTIFF_NUM__2050__GeogGeodeticDatumGeoKey=6258
  GEOTIFF_NUM__2054__GeogAngularUnitsGeoKey=9102
  GEOTIFF_NUM__2057__GeogSemiMajorAxisGeoKey=6378137.000000
  GEOTIFF_NUM__2059__GeogInvFlatteningGeoKey=298.257222
  GEOTIFF_NUM__2061__GeogPrimeMeridianLongGeoKey=0.000000
  GEOTIFF_NUM__3072__ProjectedCSTypeGeoKey=32767
  GEOTIFF_NUM__3074__ProjectionGeoKey=32767
  GEOTIFF_NUM__3075__ProjCoordTransGeoKey=1
  GEOTIFF_NUM__3076__ProjLinearUnitsGeoKey=9001
  GEOTIFF_NUM__3080__ProjNatOriginLongGeoKey=-8.133108
  GEOTIFF_NUM__3081__ProjNatOriginLatGeoKey=39.668258
  GEOTIFF_NUM__3082__ProjFalseEastingGeoKey=0.000000
  GEOTIFF_NUM__3083__ProjFalseNorthingGeoKey=0.000000
  GEOTIFF_NUM__3092__ProjScaleAtNatOriginGeoKey=1.000000
Image Structure Metadata:
  INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left  (   37881.834, -285245.410) (  7d42'25.13"W, 37d 5'52.09"N)
Lower Left  (   37881.834, -286282.068) (  7d42'25.32"W, 37d 5'18.46"N)
Upper Right (   39005.530, -285245.410) (  7d41'39.62"W, 37d 5'51.92"N)
Lower Right (   39005.530, -286282.068) (  7d41'39.82"W, 37d 5'18.29"N)
Center      (   38443.682, -285763.739) (  7d42' 2.47"W, 37d 5'35.19"N)
Band 1 Block=1024x128 Type=Byte, ColorInterp=Red
  Min=0.000 Max=255.000
  Minimum=0.000, Maximum=255.000, Mean=236.038, StdDev=66.045
  NoData Value=256
  Overviews: 3318x3061, 1659x1531, 830x766, 415x383, 208x192
  Metadata:

STATISTICS_COVARIANCES=4361.995430900208,2244.864802420663,3368.225850604773
    STATISTICS_MAXIMUM=255
    STATISTICS_MEAN=236,03793160725
    STATISTICS_MINIMUM=0
    STATISTICS_SKIPFACTORX=1
    STATISTICS_SKIPFACTORY=1
    STATISTICS_STDDEV=66,045404313247
  Image Structure Metadata:
    COMPRESSION=JP2000
Band 2 Block=1024x128 Type=Byte, ColorInterp=Green
  Min=0.000 Max=255.000
  Minimum=0.000, Maximum=255.000, Mean=218.476, StdDev=87.277
  NoData Value=256
  Overviews: 3318x3061, 1659x1531, 830x766, 415x383, 208x192
  Metadata:

STATISTICS_COVARIANCES=2244.864802420663,7617.276745283226,7051.036243014802
    STATISTICS_MAXIMUM=255
    STATISTICS_MEAN=218,47574597805
    STATISTICS_MINIMUM=0
    STATISTICS_SKIPFACTORX=1
    STATISTICS_SKIPFACTORY=1
    STATISTICS_STDDEV=87,277011551056
  Image Structure Metadata:
    COMPRESSION=JP2000
Band 3 Block=1024x128 Type=Byte, ColorInterp=Blue
  Min=0.000 Max=255.000
  Minimum=0.000, Maximum=255.000, Mean=215.145, StdDev=92.105
  NoData Value=256
  Overviews: 3318x3061, 1659x1531, 830x766, 415x383, 208x192
  Metadata:

STATISTICS_COVARIANCES=3368.225850604773,7051.036243014802,8483.403263628108
    STATISTICS_MAXIMUM=255
    STATISTICS_MEAN=215,14531106402
    STATISTICS_MINIMUM=0
    STATISTICS_SKIPFACTORX=1
    STATISTICS_SKIPFACTORY=1
    STATISTICS_STDDEV=92,105392152838
  Image Structure Metadata:
    COMPRESSION=JP2000


-- 
Regards,
Marco Afonso
http://goo.gl/ZDtQjm
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