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http://webserver01.osc.leftcape.com/08_TEST/pythonClassTest/05_alesund_dtm_COG/33-110-135_3857_bt_rgb_zeroToNull_COG.tif
https://webserver01.osc.leftcape.com/08_TEST/alesund/test2/buildRGB/conversionToRgb/01_r007c004_-fillnodata1000_ZeroNull_COG.tif