Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
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/*
* FLOATIMG
* import/export to/from FITS files
*/
#include <stdio.h>
#include <stdlib.h>
#include <fitsio.h>
#include "../floatimg.h"
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_save_R_as_fits(FloatImg *src, char *outname, int flags)
{
fitsfile *fptr; /* pointer to the FITS file */
int status, idx, k, sz;
int bitpix = FLOAT_IMG;
long naxis = 2;
long naxes[2];
float **array;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p '%s' %d )\n", __func__, src, outname, flags);
#endif
status = 0;
remove(outname); /* Delete old file if it already exists */
if (fits_create_file(&fptr, outname, &status)) {
fits_report_error(stderr, status);
return -9;
}
naxes[0] = src->width; naxes[1] = src->height;
array = calloc(src->height, sizeof(float *));
if (verbosity) fimg_describe(src, "to be saved as fits");
/* initialize pointers to the start of each row of the image */
for( idx=0; idx<naxes[1]; idx++ ) {
/**** MAGIC CODE MUST COME HERE ****/
k = naxes[1] - idx - 1;
array[idx] = src->R + (k*naxes[0]);
fprintf(stderr, " %6d %6d %p\n", idx, k, array[idx]);
}
if ( fits_create_img(fptr, bitpix, naxis, naxes, &status) ) {
fits_report_error(stderr, status);
return -10;
}
sz = naxes[0]*naxes[1];
if ( fits_write_img(fptr, TFLOAT, 1, sz, array[0], &status) ) {
fits_report_error(stderr, status);
return -10;
}
if ( fits_close_file(fptr, &status) ) {
fits_report_error(stderr, status);
return -9;
}
return 0;
}
/* --------------------------------------------------------------------- */