A rasterio plugin for working with nodata. Provides a cli and python modules.
pip install -U pip
pip install rio-alpha
Alternatively, if you're looking to contribute:
git clone git@github.com:mapbox/rio-alpha.git
cd rio-alpha
pip install -U pip
pip install -r requirements.txt
pip install -e .
❯ rio alpha --help
Usage: rio alpha [OPTIONS] SRC_PATH DST_PATH
Options:
--ndv TEXT Expects a string containing a single integer value
(e.g. '255') or a string representation of a list
containing per-band nodata values (e.g. '[255, 255,
255]').
-j, --workers INTEGER
--co NAME=VALUE Driver specific creation options.See the
documentation for the selected output driver for more
information.
--help Show this message and exit.
❯ rio islossy --help
Usage: rio islossy [OPTIONS] INPUT
Determine if there are >= 10 nodata regions in an image
If true, returns the string `True`. If false, returns the string 'False'
Options:
--ndv TEXT Expects a string containing a single integer value (e.g. '255')
or a string representation of a list containing per-band nodata
values (e.g. '[255, 255, 255]').
--help Show this message and exit.
❯ rio findnodata --help
Usage: rio findnodata [OPTIONS] SRC_PATH
Options:
-u, --user_nodata TEXT User supplies the nodata value, input a string
containing a single integer value (e.g. '255') or a
string representation of a list containing per-band
nodata values (e.g. '[255, 255, 255]').
--discovery Determines nodata if alpha channeldoes not exist or
internal ndv does not exist
--debug Enables matplotlib & printing of figures
-v, --verbose Prints extra information, like competing candidate
values
--help Show this message and exit.