Reading and writing raster data using GDAL
Here are some commands for reading and writing raster data with GDAL:
In: !gdalinfo --formats
This command lists all supported file formats in GDAL. For a summary including the CRS, use !gdalinfo
without any prefixes:
In: !gdalinfo "C:\data\gdal\NE\50m_raster\NE1_50M_SR_W \NE1_50M_SR_W.tif" Out: Driver: GTiff/GeoTIFF Files: C:\data\gdal\NE\50m_raster\NE1_50M_SR_W\NE1_50M_SR_W.tif Size is 10800, 5400 Coordinate System is: GEOGCS["WGS 84", DATUM["WGS_1984", ...
You can convert a GeoTIFF to a JPEG file as follows:
In: !gdal_translate -of JPEG "C:\data\gdal\NE\50m_raster\NE1_50M_SR_W\NE1_50M_SR_W.tif" NE1_50M_SR_W.jpg Out: Input file size is 10800, 5400 0...10...20...30...40...50...60...70...80...90...100 - done.
The output, NE1_50M_SR_W.jpg
, will look like this:
Now, let's open a GeoPackage using GDAL. GeoPackages can be either vector or raster-based, but in this case, we'll open a raster-based one, which becomes...