compress_image_data¶
- astropy.io.fits.hdu.compressed._tiled_compression.compress_image_data(image_data, compression_type, compressed_header, compressed_coldefs)[source]¶
Compress the data in a
CompImageHDU
.The input HDU is expected to have a uncompressed numpy array as it’s
.data
attribute.- Parameters:
- Returns:
- nbytes
int
The number of bytes of the heap.
- heap
bytes
The bytes of the FITS table heap.
- nbytes