image_to_dask

casa_formats_io.image_to_dask(imagename, memmap=True, mask=False, target_chunksize=None)

Read a CASA image (a folder containing a table.f0_TSM0 file) into a dask array.

Parameters:

imagenamestr

The filename of the CASA image directory

memmapbool, optional

Whether to use memory mapping or load the full cube into memory

maskstr or bool, optional

If set to a string, should be the name of the mask (e.g. mask1) and the mask is returned instead of the data. If True, mask0 will be used.

target_chunksizeint

The desired dask chunk size - CASA chunks are aggregated into blocks of approximately this number of elements.