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andrewharvey/main.sh

Last active September 26, 2018 09:08
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Melbourne May 2018 Imagery
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main.sh
wget https://s3-ap-southeast-2.amazonaws.com/opendata-aerial-imagery/mga55_gda94_10cm_2018_CoM_true_ortho.zip
unzip mga55_gda94_10cm_2018_CoM_true_ortho.zip
rm mga55_gda94_10cm_2018_CoM_true_ortho.zip
gdalwarp -multi -wo NUM_THREADS=ALL_CPUS -r lanczos -t_srs 'EPSG:3857' -co COMPRESS=JPEG -co TILED=YES mga55_gda94_10cm_2018_CoM_true_ortho/mga55_gda94_10cm_2018_CoM_true_ortho.jp2 CoM_10cm_May_2018_EPSG3857.tiff
# the alpha band is being misunderstood by most software, creating a transpaent image, so we can just ignore the alpha band
gdal_translate -co COMPRESS=JPEG -b 1 -b 2 -b 3 CoM_10cm_May_2018_EPSG3857.tiff CoM_10cm_May_2018_EPSG3857_RGB.tiff
# You may find it easier to run this on the Docker image at https://hub.docker.com/r/klokantech/gdal/ which has various JP2 drivers installed
# docker run -ti --rm -v $(pwd):/data klokantech/gdal gdalwarp ...
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