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What should the output of gdalwarp be?
If not specified (or not deduced from -te and -ts), gdalwarp will generate an output raster with xres=yres, and that even when using gdalwarp in scenarios not involving reprojection. (target aligned pixels) align the coordinates of the extent of the output file to the values of the -tr, such that the aligned extent includes the minimum extent.
When to use vertical correction in GDAL 2.2?
Starting with GDAL 2.2, if the SRS has an explicit vertical datum that points to a PROJ.4 geoidgrids, and the input dataset is a single band dataset, a vertical correction will be applied to the values of the dataset. New in version 3.4. Assign a coordinate epoch, linked with the target SRS.
What is the SRS for GDAL in OGR?
Specifies the SRS in which to interpret the coordinates given with -te. The may be any of the usual GDAL/OGR forms, complete WKT, PROJ.4, EPSG:n or a file containing the WKT.
How to create an alpha band in GDAL?
Create an output alpha band to identify nodata (unset/transparent) pixels. Set the amount of memory that the warp API is allowed to use for caching. The value is interpreted as being in megabytes if the value is less than 10000. For values >=10000]
How to change the description of a GeoTIFF file?
GDAL includes a python application called gdal_edit.py which can be used to modify the metadata of a file in place. I am not familiar with the Description field you are referring to, but this tool should be the one to use. Here is the man page: gdal_edit.py
How to mask outside of the cutline in gdalwarp?
You need to use the -dstalpha option to gdalwarp e.g.: This will add an alpha band to the output tiff which masks out the area falling outside the cutline. A late answer, but hopefully it will help someone else with the same problem. Try to specify the nodata-value from your input raster and set it for the output as well.
Is there a raster clip option for gdalwarp?
More about the options here. You can use raster clip option in QGIS which runs gdalwarp in the background and configures the right options for you. Highly active question. Earn 10 reputation (not counting the association bonus) in order to answer this question.
How to crop a GeoTIFF file using GDAL?
This worked to crop a GeoTiff removing 300 pixel padding from top and left and keeping the next 2000×2000 pixels. gdal_translate -srcwin 300 300 2000 2000 input.tif output.tif I’ve spent an embarrassingly long time trying to figure this out. I have a series of satellite images in GEOTiff format.