Add lab 2
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.gitignore
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.gitignore
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# Created by https://www.toptal.com/developers/gitignore/api/python
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# Edit at https://www.toptal.com/developers/gitignore?templates=python
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### Python ###
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# Byte-compiled / optimized / DLL files
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MANIFEST
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# End of https://www.toptal.com/developers/gitignore/api/python
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BIN
LE07_L1TP_177025_20210723_20210818_02_T1_B1.TIF
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BIN
LE07_L1TP_177025_20210723_20210818_02_T1_B1.TIF
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Binary file not shown.
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LE07_L1TP_177025_20210723_20210818_02_T1_B2.TIF
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BIN
LE07_L1TP_177025_20210723_20210818_02_T1_B2.TIF
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LE07_L1TP_177025_20210723_20210818_02_T1_B3.TIF
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LE07_L1TP_177025_20210723_20210818_02_T1_B3.TIF
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BIN
LE07_L1TP_177025_20210723_20210818_02_T1_B4.TIF
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BIN
LE07_L1TP_177025_20210723_20210818_02_T1_B4.TIF
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Binary file not shown.
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LE07_L1TP_177025_20210723_20210818_02_T1_MTL.txt
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LE07_L1TP_177025_20210723_20210818_02_T1_MTL.txt
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GROUP = LANDSAT_METADATA_FILE
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GROUP = PRODUCT_CONTENTS
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ORIGIN = "Image courtesy of the U.S. Geological Survey"
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DIGITAL_OBJECT_IDENTIFIER = "https://doi.org/10.5066/P9TU80IG"
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LANDSAT_PRODUCT_ID = "LE07_L1TP_177025_20210723_20210818_02_T1"
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PROCESSING_LEVEL = "L1TP"
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COLLECTION_NUMBER = 02
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COLLECTION_CATEGORY = "T1"
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OUTPUT_FORMAT = "GEOTIFF"
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FILE_NAME_BAND_1 = "LE07_L1TP_177025_20210723_20210818_02_T1_B1.TIF"
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FILE_NAME_BAND_2 = "LE07_L1TP_177025_20210723_20210818_02_T1_B2.TIF"
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FILE_NAME_BAND_3 = "LE07_L1TP_177025_20210723_20210818_02_T1_B3.TIF"
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FILE_NAME_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_B4.TIF"
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FILE_NAME_BAND_5 = "LE07_L1TP_177025_20210723_20210818_02_T1_B5.TIF"
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FILE_NAME_BAND_6_VCID_1 = "LE07_L1TP_177025_20210723_20210818_02_T1_B6_VCID_1.TIF"
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FILE_NAME_BAND_6_VCID_2 = "LE07_L1TP_177025_20210723_20210818_02_T1_B6_VCID_2.TIF"
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FILE_NAME_BAND_7 = "LE07_L1TP_177025_20210723_20210818_02_T1_B7.TIF"
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FILE_NAME_BAND_8 = "LE07_L1TP_177025_20210723_20210818_02_T1_B8.TIF"
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FILE_NAME_QUALITY_L1_PIXEL = "LE07_L1TP_177025_20210723_20210818_02_T1_QA_PIXEL.TIF"
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FILE_NAME_QUALITY_L1_RADIOMETRIC_SATURATION = "LE07_L1TP_177025_20210723_20210818_02_T1_QA_RADSAT.TIF"
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FILE_NAME_GROUND_CONTROL_POINT = "LE07_L1TP_177025_20210723_20210818_02_T1_GCP.txt"
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FILE_NAME_ANGLE_COEFFICIENT = "LE07_L1TP_177025_20210723_20210818_02_T1_ANG.txt"
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FILE_NAME_ANGLE_SENSOR_AZIMUTH_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_VAA.TIF"
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FILE_NAME_ANGLE_SENSOR_ZENITH_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_VZA.TIF"
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FILE_NAME_ANGLE_SOLAR_AZIMUTH_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_SAA.TIF"
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FILE_NAME_ANGLE_SOLAR_ZENITH_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_SZA.TIF"
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FILE_NAME_METADATA_ODL = "LE07_L1TP_177025_20210723_20210818_02_T1_MTL.txt"
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FILE_NAME_METADATA_XML = "LE07_L1TP_177025_20210723_20210818_02_T1_MTL.xml"
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DATA_TYPE_BAND_1 = "UINT8"
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DATA_TYPE_BAND_2 = "UINT8"
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DATA_TYPE_BAND_3 = "UINT8"
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DATA_TYPE_BAND_4 = "UINT8"
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DATA_TYPE_BAND_5 = "UINT8"
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DATA_TYPE_BAND_6_VCID_1 = "UINT8"
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DATA_TYPE_BAND_6_VCID_2 = "UINT8"
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DATA_TYPE_BAND_7 = "UINT8"
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DATA_TYPE_BAND_8 = "UINT8"
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DATA_TYPE_QUALITY_L1_PIXEL = "UINT16"
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DATA_TYPE_QUALITY_L1_RADIOMETRIC_SATURATION = "UINT16"
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DATA_TYPE_ANGLE_SENSOR_AZIMUTH_BAND_4 = "INT16"
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DATA_TYPE_ANGLE_SENSOR_ZENITH_BAND_4 = "INT16"
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DATA_TYPE_ANGLE_SOLAR_AZIMUTH_BAND_4 = "INT16"
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DATA_TYPE_ANGLE_SOLAR_ZENITH_BAND_4 = "INT16"
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END_GROUP = PRODUCT_CONTENTS
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GROUP = IMAGE_ATTRIBUTES
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SPACECRAFT_ID = "LANDSAT_7"
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SENSOR_ID = "ETM"
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WRS_TYPE = 2
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WRS_PATH = 177
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WRS_ROW = 025
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DATE_ACQUIRED = 2021-07-23
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SCENE_CENTER_TIME = "07:26:38.9955869Z"
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STATION_ID = "NSG"
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CLOUD_COVER = 0.00
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CLOUD_COVER_LAND = 0.00
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IMAGE_QUALITY = 9
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SATURATION_BAND_1 = "Y"
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SATURATION_BAND_2 = "Y"
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SATURATION_BAND_3 = "Y"
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SATURATION_BAND_4 = "Y"
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SATURATION_BAND_5 = "Y"
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SATURATION_BAND_6_VCID_1 = "N"
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SATURATION_BAND_6_VCID_2 = "N"
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SATURATION_BAND_7 = "Y"
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SATURATION_BAND_8 = "N"
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SUN_AZIMUTH = 126.84545120
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SUN_ELEVATION = 49.90781811
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EARTH_SUN_DISTANCE = 1.0159141
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SENSOR_MODE = "BUMPER"
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SENSOR_MODE_SLC = "OFF"
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SENSOR_ANOMALIES = "NONE"
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END_GROUP = IMAGE_ATTRIBUTES
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GROUP = PROJECTION_ATTRIBUTES
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MAP_PROJECTION = "UTM"
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DATUM = "WGS84"
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ELLIPSOID = "WGS84"
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UTM_ZONE = 37
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GRID_CELL_SIZE_PANCHROMATIC = 15.00
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GRID_CELL_SIZE_REFLECTIVE = 30.00
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GRID_CELL_SIZE_THERMAL = 30.00
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PANCHROMATIC_LINES = 15081
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PANCHROMATIC_SAMPLES = 16981
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REFLECTIVE_LINES = 7541
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REFLECTIVE_SAMPLES = 8491
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THERMAL_LINES = 7541
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THERMAL_SAMPLES = 8491
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ORIENTATION = "NORTH_UP"
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CORNER_UL_LAT_PRODUCT = 51.28241
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CORNER_UL_LON_PRODUCT = 34.82816
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CORNER_UR_LAT_PRODUCT = 51.35561
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CORNER_UR_LON_PRODUCT = 38.48012
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CORNER_LL_LAT_PRODUCT = 49.25322
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CORNER_LL_LON_PRODUCT = 35.00205
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CORNER_LR_LAT_PRODUCT = 49.32136
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CORNER_LR_LON_PRODUCT = 38.50186
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CORNER_UL_PROJECTION_X_PRODUCT = 209100.000
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CORNER_UL_PROJECTION_Y_PRODUCT = 5689500.000
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CORNER_UR_PROJECTION_X_PRODUCT = 463800.000
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CORNER_UR_PROJECTION_Y_PRODUCT = 5689500.000
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CORNER_LL_PROJECTION_X_PRODUCT = 209100.000
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CORNER_LL_PROJECTION_Y_PRODUCT = 5463300.000
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CORNER_LR_PROJECTION_X_PRODUCT = 463800.000
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CORNER_LR_PROJECTION_Y_PRODUCT = 5463300.000
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END_GROUP = PROJECTION_ATTRIBUTES
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GROUP = LEVEL1_PROCESSING_RECORD
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ORIGIN = "Image courtesy of the U.S. Geological Survey"
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DIGITAL_OBJECT_IDENTIFIER = "https://doi.org/10.5066/P9TU80IG"
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REQUEST_ID = "P700y95yl7543_00333"
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LANDSAT_SCENE_ID = "LE71770252021204NSG00"
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LANDSAT_PRODUCT_ID = "LE07_L1TP_177025_20210723_20210818_02_T1"
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PROCESSING_LEVEL = "L1TP"
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COLLECTION_CATEGORY = "T1"
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OUTPUT_FORMAT = "GEOTIFF"
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DATE_PRODUCT_GENERATED = 2021-08-18T17:58:16Z
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PROCESSING_SOFTWARE_VERSION = "LPGS_15.5.0"
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FILE_NAME_BAND_1 = "LE07_L1TP_177025_20210723_20210818_02_T1_B1.TIF"
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FILE_NAME_BAND_2 = "LE07_L1TP_177025_20210723_20210818_02_T1_B2.TIF"
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FILE_NAME_BAND_3 = "LE07_L1TP_177025_20210723_20210818_02_T1_B3.TIF"
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FILE_NAME_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_B4.TIF"
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FILE_NAME_BAND_5 = "LE07_L1TP_177025_20210723_20210818_02_T1_B5.TIF"
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FILE_NAME_BAND_6_VCID_1 = "LE07_L1TP_177025_20210723_20210818_02_T1_B6_VCID_1.TIF"
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FILE_NAME_BAND_6_VCID_2 = "LE07_L1TP_177025_20210723_20210818_02_T1_B6_VCID_2.TIF"
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FILE_NAME_BAND_7 = "LE07_L1TP_177025_20210723_20210818_02_T1_B7.TIF"
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FILE_NAME_BAND_8 = "LE07_L1TP_177025_20210723_20210818_02_T1_B8.TIF"
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FILE_NAME_QUALITY_L1_PIXEL = "LE07_L1TP_177025_20210723_20210818_02_T1_QA_PIXEL.TIF"
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FILE_NAME_QUALITY_L1_RADIOMETRIC_SATURATION = "LE07_L1TP_177025_20210723_20210818_02_T1_QA_RADSAT.TIF"
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FILE_NAME_GROUND_CONTROL_POINT = "LE07_L1TP_177025_20210723_20210818_02_T1_GCP.txt"
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FILE_NAME_ANGLE_COEFFICIENT = "LE07_L1TP_177025_20210723_20210818_02_T1_ANG.txt"
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FILE_NAME_ANGLE_SENSOR_AZIMUTH_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_VAA.TIF"
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FILE_NAME_ANGLE_SENSOR_ZENITH_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_VZA.TIF"
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FILE_NAME_ANGLE_SOLAR_AZIMUTH_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_SAA.TIF"
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FILE_NAME_ANGLE_SOLAR_ZENITH_BAND_4 = "LE07_L1TP_177025_20210723_20210818_02_T1_SZA.TIF"
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FILE_NAME_METADATA_ODL = "LE07_L1TP_177025_20210723_20210818_02_T1_MTL.txt"
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FILE_NAME_METADATA_XML = "LE07_L1TP_177025_20210723_20210818_02_T1_MTL.xml"
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FILE_NAME_CPF = "LE07CPF_20210701_20210930_02.03"
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DATA_SOURCE_ELEVATION = "GLS2000"
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GROUND_CONTROL_POINTS_VERSION = 5
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GROUND_CONTROL_POINTS_MODEL = 1102
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GEOMETRIC_RMSE_MODEL = 4.495
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GEOMETRIC_RMSE_MODEL_Y = 3.328
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GEOMETRIC_RMSE_MODEL_X = 3.022
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EPHEMERIS_TYPE = "DEFINITIVE"
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END_GROUP = LEVEL1_PROCESSING_RECORD
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GROUP = LEVEL1_MIN_MAX_RADIANCE
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RADIANCE_MAXIMUM_BAND_1 = 293.700
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RADIANCE_MINIMUM_BAND_1 = -6.200
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RADIANCE_MAXIMUM_BAND_2 = 300.900
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RADIANCE_MINIMUM_BAND_2 = -6.400
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RADIANCE_MAXIMUM_BAND_3 = 234.400
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RADIANCE_MINIMUM_BAND_3 = -5.000
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RADIANCE_MAXIMUM_BAND_4 = 241.100
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RADIANCE_MINIMUM_BAND_4 = -5.100
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RADIANCE_MAXIMUM_BAND_5 = 47.570
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RADIANCE_MINIMUM_BAND_5 = -1.000
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RADIANCE_MAXIMUM_BAND_6_VCID_1 = 17.040
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RADIANCE_MINIMUM_BAND_6_VCID_1 = 0.000
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RADIANCE_MAXIMUM_BAND_6_VCID_2 = 12.650
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RADIANCE_MINIMUM_BAND_6_VCID_2 = 3.200
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RADIANCE_MAXIMUM_BAND_7 = 16.540
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RADIANCE_MINIMUM_BAND_7 = -0.350
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RADIANCE_MAXIMUM_BAND_8 = 243.100
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RADIANCE_MINIMUM_BAND_8 = -4.700
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END_GROUP = LEVEL1_MIN_MAX_RADIANCE
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GROUP = LEVEL1_MIN_MAX_REFLECTANCE
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REFLECTANCE_MAXIMUM_BAND_1 = 0.467724
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REFLECTANCE_MINIMUM_BAND_1 = -0.009874
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REFLECTANCE_MAXIMUM_BAND_2 = 0.525664
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REFLECTANCE_MINIMUM_BAND_2 = -0.011181
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REFLECTANCE_MAXIMUM_BAND_3 = 0.498370
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REFLECTANCE_MINIMUM_BAND_3 = -0.010631
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REFLECTANCE_MAXIMUM_BAND_4 = 0.729914
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REFLECTANCE_MINIMUM_BAND_4 = -0.015440
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REFLECTANCE_MAXIMUM_BAND_5 = 0.696029
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REFLECTANCE_MINIMUM_BAND_5 = -0.014632
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REFLECTANCE_MAXIMUM_BAND_7 = 0.659156
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REFLECTANCE_MINIMUM_BAND_7 = -0.013948
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REFLECTANCE_MAXIMUM_BAND_8 = 0.597591
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REFLECTANCE_MINIMUM_BAND_8 = -0.011554
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END_GROUP = LEVEL1_MIN_MAX_REFLECTANCE
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GROUP = LEVEL1_MIN_MAX_PIXEL_VALUE
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QUANTIZE_CAL_MAX_BAND_1 = 255
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QUANTIZE_CAL_MIN_BAND_1 = 1
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QUANTIZE_CAL_MAX_BAND_2 = 255
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QUANTIZE_CAL_MIN_BAND_2 = 1
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QUANTIZE_CAL_MAX_BAND_3 = 255
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QUANTIZE_CAL_MIN_BAND_3 = 1
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QUANTIZE_CAL_MAX_BAND_4 = 255
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QUANTIZE_CAL_MIN_BAND_4 = 1
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QUANTIZE_CAL_MAX_BAND_5 = 255
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QUANTIZE_CAL_MIN_BAND_5 = 1
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QUANTIZE_CAL_MAX_BAND_6_VCID_1 = 255
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QUANTIZE_CAL_MIN_BAND_6_VCID_1 = 1
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QUANTIZE_CAL_MAX_BAND_6_VCID_2 = 255
|
||||
QUANTIZE_CAL_MIN_BAND_6_VCID_2 = 1
|
||||
QUANTIZE_CAL_MAX_BAND_7 = 255
|
||||
QUANTIZE_CAL_MIN_BAND_7 = 1
|
||||
QUANTIZE_CAL_MAX_BAND_8 = 255
|
||||
QUANTIZE_CAL_MIN_BAND_8 = 1
|
||||
END_GROUP = LEVEL1_MIN_MAX_PIXEL_VALUE
|
||||
GROUP = LEVEL1_RADIOMETRIC_RESCALING
|
||||
RADIANCE_MULT_BAND_1 = 1.1807E+00
|
||||
RADIANCE_MULT_BAND_2 = 1.2098E+00
|
||||
RADIANCE_MULT_BAND_3 = 9.4252E-01
|
||||
RADIANCE_MULT_BAND_4 = 9.6929E-01
|
||||
RADIANCE_MULT_BAND_5 = 1.9122E-01
|
||||
RADIANCE_MULT_BAND_6_VCID_1 = 6.7087E-02
|
||||
RADIANCE_MULT_BAND_6_VCID_2 = 3.7205E-02
|
||||
RADIANCE_MULT_BAND_7 = 6.6496E-02
|
||||
RADIANCE_MULT_BAND_8 = 9.7559E-01
|
||||
RADIANCE_ADD_BAND_1 = -7.38071
|
||||
RADIANCE_ADD_BAND_2 = -7.60984
|
||||
RADIANCE_ADD_BAND_3 = -5.94252
|
||||
RADIANCE_ADD_BAND_4 = -6.06929
|
||||
RADIANCE_ADD_BAND_5 = -1.19122
|
||||
RADIANCE_ADD_BAND_6_VCID_1 = -0.06709
|
||||
RADIANCE_ADD_BAND_6_VCID_2 = 3.16280
|
||||
RADIANCE_ADD_BAND_7 = -0.41650
|
||||
RADIANCE_ADD_BAND_8 = -5.67559
|
||||
REFLECTANCE_MULT_BAND_1 = 1.8803E-03
|
||||
REFLECTANCE_MULT_BAND_2 = 2.1136E-03
|
||||
REFLECTANCE_MULT_BAND_3 = 2.0039E-03
|
||||
REFLECTANCE_MULT_BAND_4 = 2.9345E-03
|
||||
REFLECTANCE_MULT_BAND_5 = 2.7979E-03
|
||||
REFLECTANCE_MULT_BAND_7 = 2.6500E-03
|
||||
REFLECTANCE_MULT_BAND_8 = 2.3982E-03
|
||||
REFLECTANCE_ADD_BAND_1 = -0.011754
|
||||
REFLECTANCE_ADD_BAND_2 = -0.013294
|
||||
REFLECTANCE_ADD_BAND_3 = -0.012635
|
||||
REFLECTANCE_ADD_BAND_4 = -0.018374
|
||||
REFLECTANCE_ADD_BAND_5 = -0.017430
|
||||
REFLECTANCE_ADD_BAND_7 = -0.016598
|
||||
REFLECTANCE_ADD_BAND_8 = -0.013952
|
||||
END_GROUP = LEVEL1_RADIOMETRIC_RESCALING
|
||||
GROUP = LEVEL1_THERMAL_CONSTANTS
|
||||
K1_CONSTANT_BAND_6_VCID_1 = 666.09
|
||||
K2_CONSTANT_BAND_6_VCID_1 = 1282.71
|
||||
K1_CONSTANT_BAND_6_VCID_2 = 666.09
|
||||
K2_CONSTANT_BAND_6_VCID_2 = 1282.71
|
||||
END_GROUP = LEVEL1_THERMAL_CONSTANTS
|
||||
GROUP = LEVEL1_PROJECTION_PARAMETERS
|
||||
MAP_PROJECTION = "UTM"
|
||||
DATUM = "WGS84"
|
||||
ELLIPSOID = "WGS84"
|
||||
UTM_ZONE = 37
|
||||
GRID_CELL_SIZE_PANCHROMATIC = 15.00
|
||||
GRID_CELL_SIZE_REFLECTIVE = 30.00
|
||||
GRID_CELL_SIZE_THERMAL = 30.00
|
||||
ORIENTATION = "NORTH_UP"
|
||||
RESAMPLING_OPTION = "CUBIC_CONVOLUTION"
|
||||
SCAN_GAP_INTERPOLATION = 2.0
|
||||
END_GROUP = LEVEL1_PROJECTION_PARAMETERS
|
||||
GROUP = PRODUCT_PARAMETERS
|
||||
CORRECTION_GAIN_BAND_1 = "CPF"
|
||||
CORRECTION_GAIN_BAND_2 = "CPF"
|
||||
CORRECTION_GAIN_BAND_3 = "CPF"
|
||||
CORRECTION_GAIN_BAND_4 = "CPF"
|
||||
CORRECTION_GAIN_BAND_5 = "CPF"
|
||||
CORRECTION_GAIN_BAND_6_VCID_1 = "CPF"
|
||||
CORRECTION_GAIN_BAND_6_VCID_2 = "CPF"
|
||||
CORRECTION_GAIN_BAND_7 = "CPF"
|
||||
CORRECTION_GAIN_BAND_8 = "CPF"
|
||||
CORRECTION_BIAS_BAND_1 = "INTERNAL_CALIBRATION"
|
||||
CORRECTION_BIAS_BAND_2 = "INTERNAL_CALIBRATION"
|
||||
CORRECTION_BIAS_BAND_3 = "INTERNAL_CALIBRATION"
|
||||
CORRECTION_BIAS_BAND_4 = "INTERNAL_CALIBRATION"
|
||||
CORRECTION_BIAS_BAND_5 = "INTERNAL_CALIBRATION"
|
||||
CORRECTION_BIAS_BAND_6_VCID_1 = "INTERNAL_CALIBRATION"
|
||||
CORRECTION_BIAS_BAND_6_VCID_2 = "INTERNAL_CALIBRATION"
|
||||
CORRECTION_BIAS_BAND_7 = "INTERNAL_CALIBRATION"
|
||||
CORRECTION_BIAS_BAND_8 = "INTERNAL_CALIBRATION"
|
||||
GAIN_BAND_1 = "L"
|
||||
GAIN_BAND_2 = "L"
|
||||
GAIN_BAND_3 = "L"
|
||||
GAIN_BAND_4 = "L"
|
||||
GAIN_BAND_5 = "L"
|
||||
GAIN_BAND_6_VCID_1 = "L"
|
||||
GAIN_BAND_6_VCID_2 = "H"
|
||||
GAIN_BAND_7 = "L"
|
||||
GAIN_BAND_8 = "L"
|
||||
GAIN_CHANGE_BAND_1 = "LL"
|
||||
GAIN_CHANGE_BAND_2 = "LL"
|
||||
GAIN_CHANGE_BAND_3 = "LL"
|
||||
GAIN_CHANGE_BAND_4 = "LL"
|
||||
GAIN_CHANGE_BAND_5 = "LL"
|
||||
GAIN_CHANGE_BAND_6_VCID_1 = "LL"
|
||||
GAIN_CHANGE_BAND_6_VCID_2 = "HH"
|
||||
GAIN_CHANGE_BAND_7 = "LL"
|
||||
GAIN_CHANGE_BAND_8 = "LL"
|
||||
GAIN_CHANGE_SCAN_BAND_1 = 0
|
||||
GAIN_CHANGE_SCAN_BAND_2 = 0
|
||||
GAIN_CHANGE_SCAN_BAND_3 = 0
|
||||
GAIN_CHANGE_SCAN_BAND_4 = 0
|
||||
GAIN_CHANGE_SCAN_BAND_5 = 0
|
||||
GAIN_CHANGE_SCAN_BAND_6_VCID_1 = 0
|
||||
GAIN_CHANGE_SCAN_BAND_6_VCID_2 = 0
|
||||
GAIN_CHANGE_SCAN_BAND_7 = 0
|
||||
GAIN_CHANGE_SCAN_BAND_8 = 0
|
||||
END_GROUP = PRODUCT_PARAMETERS
|
||||
END_GROUP = LANDSAT_METADATA_FILE
|
||||
END
|
||||
76
sat.py
76
sat.py
|
|
@ -51,3 +51,79 @@ print(composite.size)
|
|||
cropped = composite.crop((x0, y0, x1, y1))
|
||||
|
||||
cropped.save('cropped.png')
|
||||
|
||||
###############################################################################
|
||||
# LAB 2
|
||||
###############################################################################
|
||||
|
||||
# Load landsat band 4 TIF image.
|
||||
# Band 4 is near infrared.
|
||||
|
||||
band4 = Image.open('LE07_L1TP_177025_20210723_20210818_02_T1_B4.TIF')
|
||||
|
||||
# Claculate the NDVI.
|
||||
#
|
||||
# The NDVI is calculated by dividing
|
||||
# difference of the red and near infrared band 4 by the sum of the
|
||||
# near infrared and near infrared band 4.
|
||||
#
|
||||
# The NDVI is calculated for each pixel in the cropped image.
|
||||
#
|
||||
# The NDVI is saved as a PNG image.
|
||||
|
||||
ndvi = band4.copy().crop((x0, y0, x1, y1))
|
||||
red = band3.copy().crop((x0, y0, x1, y1))
|
||||
result = cropped.copy()
|
||||
|
||||
print(red.getpixel((0, 0)))
|
||||
print(ndvi.getpixel((0, 0)))
|
||||
|
||||
# Colors for the NDVI.
|
||||
def get_color(value):
|
||||
if value < 0.033:
|
||||
return (255, 255, 255)
|
||||
elif value < 0.066:
|
||||
return (196, 184, 168)
|
||||
elif value < 0.1:
|
||||
return (180, 150, 108)
|
||||
elif value < 0.133:
|
||||
return (164, 130, 76)
|
||||
elif value < 0.166:
|
||||
return (148, 114, 60)
|
||||
elif value < 0.2:
|
||||
return (124, 158, 44)
|
||||
elif value < 0.25:
|
||||
return (148, 182, 20)
|
||||
elif value < 0.3:
|
||||
return (116, 170, 4)
|
||||
elif value < 0.35:
|
||||
return (100, 162, 4)
|
||||
elif value < 0.4:
|
||||
return (84, 150, 4)
|
||||
elif value < 0.45:
|
||||
return (60, 134, 4)
|
||||
elif value < 0.5:
|
||||
return (28, 114, 4)
|
||||
elif value < 0.6:
|
||||
return (4, 96, 4)
|
||||
elif value < 0.7:
|
||||
return (4, 74, 4)
|
||||
elif value < 0.8:
|
||||
return (4, 56, 4)
|
||||
elif value < 0.9:
|
||||
return (4, 40, 4)
|
||||
else:
|
||||
return (0, 0, 0)
|
||||
|
||||
for x in range(ndvi.size[0]):
|
||||
for y in range(ndvi.size[1]):
|
||||
r = red.getpixel((x, y))
|
||||
nir = ndvi.getpixel((x, y))
|
||||
if nir + r == 0:
|
||||
result.putpixel((x, y), get_color(0))
|
||||
else:
|
||||
result.putpixel((x, y), get_color((nir - r) / (nir + r)))
|
||||
|
||||
result.save('ndvi.png')
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue