Buenas, Al final he conseguido importar la imagen, pero he tenido que usar otro programa (opticks), para importarlo y exportarlo luego como geotiff. Luego en gvSig, oculto la banda alfa, y en realce activo "eliminar extremos".
Opticks tiene opciones a la hora de importar raster, como determinar tipo de datos, filas, columnas, tamaño de la cabecera, etc... y así pude abrir sin problemas las imágenes. Si alguien necesita más detalles que me avise. Ahora me queda pelearme con sextante, pero eso ya es otra historia. Saludos! > Incluyo dos capturas de pantalla, para explicarme mejor: > > Esta es la imagen que se muestra: > http://dl.dropbox.com/u/4582191/Pantallazo1.png > > Y esta es la banda 1 que se debiera mostrar: > http://dl.dropbox.com/u/4582191/Pantallazo2.png > > Debo modificar algo de la cabecera para que se muestre correctamente? > Hay algún modo de modificar la importación? > > Saludos. > > Iñaki<[email protected]> escribió: > >> Hola, >> >> quiero hacer una consulta porque estoy teniendo problemas a la hora de >> importar un raster en gvsig. >> >> La versión que uso es la 1.11.0, sobre windows XP, si bien cuando >> intento cargar la misma imagen usando gvsig 1.11.0 sobre ubuntu obtengo >> una ventana de "error en la carga de la capa". >> >> El problema es que la imagen que se muestra en la capa (añadir capa -> >> archivo -> añadir -> Archivo de tipo gvsig Raster Driver), presenta >> alteraciones respecto a la imagen que se debiera mostrar. Aparece como >> si estuviera pixelada y con colores... >> >> Mi intención es aplicar diferentes cálculos y ratios entre las bandas de >> la imagen mediante SEXTANTE, pero por el momento me es imposible >> trabajar sobre ésta. Me gustaría saber si hay algún modo de modificar >> las opciones por las que se carga el raster, de modo que pueda >> ajustarlas a las especificaciones de mi archivo. >> >> El archivo es un img, con formato PDS, con 5 bandas. >> Os adjunto la cabecera de la imagen que intento cargar, por si a alguien >> le da alguna pista. >> >> Muchas gracias! >> >> >> PDS_VERSION_ID = "PDS3" >> /*** FILE FORMAT ***/ >> RECORD_TYPE = "UNDEFINED" >> FILE_NAME = "MVA_2B2_01_02066N229E3135.img" >> PRODUCT_ID = "MVA_2B2_01_02066N229E3135" >> DATA_FORMAT = "PDS" >> >> /*** POINTERS TO START BYTE OFFSET OF OBJECTS IN FILE ***/ >> ^IMAGE = 7850<BYTES> >> >> /*** GENERAL DATA DESCRIPTION PARAMETERS ***/ >> SOFTWARE_NAME = "RGC_TC_MI" >> SOFTWARE_VERSION = "2.6.0" >> PROCESS_VERSION_ID = "L2B" >> PRODUCT_CREATION_TIME = 2009-11-11T18:30:36Z >> PROGRAM_START_TIME = 2009-11-11T15:50:25Z >> PRODUCER_ID = "LISM" >> PRODUCT_SET_ID = "MI-VIS_Level2B2" >> PRODUCT_VERSION_ID = "01" >> REGISTERED_PRODUCT = "Y" >> LEVEL2A_FILE_NAME = "MV52A0_02NS02066_003_0072.img" >> SPICE_METAKERNEL_FILE_NAME = >> "RGC_INF_TCv301IK_MIv104IK_SPv104IK_RISE100g_de421_091007.mk" >> >> /*** SCENE RELATED PARAMETERS ***/ >> MISSION_NAME = "SELENE" >> SPACECRAFT_NAME = "SELENE-M" >> DATA_SET_ID = "MI-VIS_Level2B" >> INSTRUMENT_NAME = "Multiband Imager Visible" >> INSTRUMENT_ID = "MI-VIS" >> MISSION_PHASE_NAME = "Nominal" >> REVOLUTION_NUMBER = 2066 >> STRIP_SEQUENCE_NUMBER = 3 >> SCENE_SEQUENCE_NUMBER = 72 >> UPPER_LEFT_DAYTIME_FLAG = "Day" >> UPPER_RIGHT_DAYTIME_FLAG = "Day" >> LOWER_LEFT_DAYTIME_FLAG = "Day" >> LOWER_RIGHT_DAYTIME_FLAG = "Day" >> TARGET_NAME = "MOON" >> OBSERVATION_MODE_ID = "NORMAL" >> SENSOR_DESCRIPTION = "MI is a multiband push-broom >> imaging camera consisting of VIS(V) and NIR(N) sensors (each has >> nadir-directed optics of f number 65 mm and F ratio 3.7). Detector pixel >> sizes in micron are 13(V) and 40(N)." >> SENSOR_DESCRIPTION2 = "Physical band arrangement [from >> satellite -x to +x] are VIS1>VIS2>VIS5>VIS4>VIS3 and >> NIR3>NIR4>NIR1>NIR2. Parallax between nearest band sets [degree] are 2.7 >> for VIS and 2.6 for NIR. Sampling time [msec] are 13 for VIS and 39 for >> NIR." >> DETECTOR_STATUS = >> {"TC1:OFF","TC2:OFF","MV:ON","MN:ON","SP:ON"} >> EXPOSURE_MODE_ID = "SHORT" >> LINE_EXPOSURE_DURATION = 1.329700<msec> >> SPACECRAFT_CLOCK_START_COUNT = 890568072.3040<sec> >> SPACECRAFT_CLOCK_STOP_COUNT = 890568084.7700<sec> >> CORRECTED_SC_CLOCK_START_COUNT = 890568072.298996<sec> >> CORRECTED_SC_CLOCK_STOP_COUNT = 890568084.765976<sec> >> START_TIME = 2008-03-26T12:01:17.493998Z >> STOP_TIME = 2008-03-26T12:01:29.959998Z >> CORRECTED_START_TIME = 2008-03-26T12:01:17.488994Z >> CORRECTED_STOP_TIME = 2008-03-26T12:01:29.955974Z >> LINE_SAMPLING_INTERVAL = 13.000000<msec> >> CORRECTED_SAMPLING_INTERVAL = 12.999980<msec> >> UPPER_LEFT_LATITUDE = 23.258831<deg> >> UPPER_LEFT_LONGITUDE = 313.889972<deg> >> UPPER_RIGHT_LATITUDE = 23.259324<deg> >> UPPER_RIGHT_LONGITUDE = 313.192215<deg> >> LOWER_LEFT_LATITUDE = 22.626003<deg> >> LOWER_LEFT_LONGITUDE = 313.885384<deg> >> LOWER_RIGHT_LATITUDE = 22.626580<deg> >> LOWER_RIGHT_LONGITUDE = 313.190846<deg> >> LOCATION_FLAG = "D" >> ROLL_CANT = "NO" >> SCENE_CENTER_LATITUDE = 22.942874<deg> >> SCENE_CENTER_LONGITUDE = 313.539450<deg> >> INCIDENCE_ANGLE = 22.944<deg> >> EMISSION_ANGLE = 0.252<deg> >> PHASE_ANGLE = 23.193<deg> >> SOLAR_AZIMUTH_ANGLE = 198.257<deg> >> FOCAL_PLANE_TEMPERATURE = 21.42<degC> >> TELESCOPE_TEMPERATURE = 18.42<degC> >> SATELLITE_MOVING_DIRECTION = "-1" >> FIRST_SAMPLED_LINE_POSITION = "UPPERMOST" >> FIRST_DETECTOR_ELEMENT_POSITION = "LEFT" >> A_AXIS_RADIUS = 1737.400<km> >> B_AXIS_RADIUS = 1737.400<km> >> C_AXIS_RADIUS = 1737.400<km> >> DEFECT_PIXEL_POSITION = ("N/A", "N/A", "N/A", "N/A", "N/A") >> >> /*** CAMERA RELATED PARAMETERS ***/ >> FILTER_NAME = ("MV1", "MV2", "MV3", "MV4", "MV5") >> CENTER_FILTER_WAVELENGTH = (414.0, 749.0, 901.0, 950.0, >> 1001.0)<nm> >> BANDWIDTH = (20.0, 12.0, 21.0, 30.0, 42.0)<nm> >> BASE_BAND = "MV5" >> SPACECRAFT_ALTITUDE = 101.377<km> >> SPACECRAFT_GROUND_SPEED = 1.541<km/sec> >> >> /*** DESCRIPTION OF OBJECTS CONTAINED IN THE FILE ***/ >> >> OBJECT = IMAGE >> NOMINAL_LINE_NUMBER = 864 >> NOMINAL_OVERLAP_LINE_NUMBER = 96 >> OVERLAP_LINE_NUMBER = 96 >> BANDS = 5 >> BAND_STORAGE_TYPE = "BAND SEQUENTIAL" >> LINES = 960 >> LINE_SAMPLES = 962 >> SAMPLE_TYPE = "MSB_INTEGER" >> SAMPLE_BITS = 16 >> IMAGE_VALUE_TYPE = "RADIANCE" >> UNIT = "W/m**2/micron/sr" >> SCALING_FACTOR = 1.30000e-02 >> OFFSET = 0.00000e+00 >> MIN_FOR_STATISTICAL_EVALUATION = (0, 0, 0, 0, 0) >> MAX_FOR_STATISTICAL_EVALUATION = (32767, 32767, 32767, 32767, 32767) >> SCENE_MAXIMUM_DN = (5355, 6815, 4778, 4197, 3944) >> SCENE_MINIMUM_DN = (1486, 2424, 1566, 1480, 1399) >> SCENE_AVERAGE_DN = (1848.1, 2956.9, 1944.6, 1835.6, >> 1766.2) >> SCENE_STDEV_DN = (210.5, 323.4, 234.0, 219.5, 214.8) >> SCENE_MODE_DN = (1704, 2714, 1765, 1666, 1606) >> SHADOWED_AREA_MINIMUM = (0, 0, 0, 0, 0) >> SHADOWED_AREA_MAXIMUM = (327, 327, 327, 327, 327) >> SHADOWED_AREA_PERCENTAGE = (0, 0, 0, 0, 0) >> INVALID_TYPE = ("SATURATION" , "MINUS" , >> "DUMMY_DEFECT" , "OTHER") >> INVALID_VALUE = (-20000 , -21000 , -22000 , -23000) >> INVALID_PIXELS = ((0 , 0 , 0 , 0), (0 , 0 , 0 , >> 0), (0 , 0 , 0 , 0), (0 , 0 , 0 , 0), (0 , 0 , 0 , 0)) >> OUT_OF_IMAGE_BOUNDS_VALUE = -30000 >> OUT_OF_IMAGE_BOUNDS_PIXELS = (3378, 2742, 3341, 2673, 0) >> END_OBJECT = IMAGE >> >> OBJECT = PROCESSING_PARAMETERS >> DARK_FILE_NAME = "MIV_DRK_01923_02268_S___002.csv" >> FT_FILE_NAME = "MIV_FTF_PRFLT_N___v01.csv" >> FLAT_FILE_NAME = "MIV_FLT_01923_02268_N___002.csv" >> EFFIC_FILE_NAME = "MIV_EFF_PRFLT_N___v01.csv" >> NONLIN_FILE_NAME = "MIV_NLT_PRFLT_N___v01.csv" >> RAD_CNV_COEF = (1.470593, 2.204781, 2.244315, >> 2.734361, 1.885889)<W/m**2/micron/sr> >> RESAMPLING_METHOD = "Bi-Linear" >> L2A_DEAD_PIXEL_THRESHOLD = (35, 35, 35, 35, 35) >> L2A_SATURATION_THRESHOLD = (1023, 1023, 1023, 1023, 1023) >> DARK_VALID_MINIMUM = (-3, -3, -3, -3, -3) >> FT_VALID_MINIMUM = -2 >> RADIANCE_SATURATION_THRESHOLD = 425.971000<W/m**2/micron/sr> >> END_OBJECT = PROCESSING_PARAMETERS >> END >> _______________________________________________ >> gvSIG_usuarios mailing list >> [email protected] >> >> Para ver histórico de mensajes, editar sus preferencias de usuario o >> darse de baja en esta lista, acuda a la siguiente dirección: >> >> http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_usuarios >> > > _______________________________________________ > gvSIG_usuarios mailing list > [email protected] > > Para ver histórico de mensajes, editar sus preferencias de usuario o darse de > baja en esta lista, acuda a la siguiente dirección: > > http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_usuarios > _______________________________________________ gvSIG_usuarios mailing list [email protected] Para ver histórico de mensajes, editar sus preferencias de usuario o darse de baja en esta lista, acuda a la siguiente dirección: http://listserv.gva.es/cgi-bin/mailman/listinfo/gvsig_usuarios
