[Gvsig_usuarios] problemas al añadir raster (solucionado)
Iñaki
inaki en m81.net
Mie Dic 7 14:52:02 CET 2011
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<inaki en m81.net> 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
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