matlab.io.fits.setCompressionType

Set image compression type

Syntax

setCompressionType(fptr,comptype)


Description

setCompressionType(fptr,comptype) specifies the image compression algorithm that should be used when writing a FITS image.

Supported values for comptype include:

'GZIP'

'GZIP2'

'RICE'

'PLIO'

'HCOMPRESS'

'NOCOMPRESS'

This function corresponds to the fits_set_compression_type function in the CFITSIO library C API.

Examples

import matlab.io.*
fptr = fits.createFile('myfile.fits');
fits.setCompressionType(fptr,'GZIP2');
fits.createImg(fptr,'long_img',[256 512]);
data = reshape(1:256*512,[256 512]);
data = int32(data);
fits.writeImg(fptr,data);
fits.closeFile(fptr);
fitsdisp('myfile.fits','mode','full');