tTh/FloatImg
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syncking code and documentation

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This commit is contained in:
Tonton Th 2020-08-07 07:39:22 +02:00
parent 47de778e60
commit 1364698e63
3 changed files with 44 additions and 6 deletions
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9
doc/the_floatimg_hack.tex
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@ -211,9 +211,12 @@ lesquels sont décrits en page \pageref{outils}.
Vous devez, en dehors des outils classiques (bash, gcc, make\dots),
avoir quelques bibliothèques installées\footnote{Les \texttt{-dev}
pour Debian et dérivées}~:
\textsf{libv4l2, libpnglite, libtiff,
\textsf{
libv4l2, libpnglite, libtiff,
libnetpbm\footnote{package libnetpbm10-dev},
libz\footnote{package zlib1g-dev}},
libz\footnote{package zlib1g-dev}, libcurses,
libcfitsio-dev
} % en of textsf
éventuellement avec le \textsf{-dev} correspondant,
et probablement d'autres choses.
@ -632,6 +635,8 @@ la NASA.
\begin{lstlisting}
int fimg_save_R_as_fits(FloatImg *src, char *outname, int flags);
int fimg_save_G_as_fits(FloatImg *src, char *outname, int flags);
int fimg_save_B_as_fits(FloatImg *src, char *outname, int flags);
\end{lstlisting}
Bizarrement, l'image est stockée \textsl{upside-down} et je ne

2
floatimg.h
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@ -3,7 +3,7 @@
* ugly code from tTh
*/
#define FIMG_VERSION 104
#define FIMG_VERSION 105
/*
* in memory descriptor

39
funcs/fimg-fits.c
View File

@ -16,12 +16,13 @@
extern int verbosity;
/* --------------------------------------------------------------------- */
int fimg_save_R_as_fits(FloatImg *src, char *outname, int flags)
int fimg_save_plane_as_fits(FloatImg *src, char *outname,
char plane, int flags)
{
fitsfile *fptr; /* pointer to the FITS file */
int status, sz;
int bitpix = FLOAT_IMG;
float *pplane;
long naxis = 2;
long naxes[2];
@ -31,6 +32,18 @@ fprintf(stderr, ">>> %s ( %p '%s' %d )\n", __func__, src, outname, flags);
status = 0;
switch (plane) {
case 'r': case 'R':
pplane = src->R; break;
case 'g': case 'G':
pplane = src->G; break;
case 'b': case 'B':
pplane = src->B; break;
default:
return -66;
}
remove(outname); /* Delete old file if it already exists */
if (fits_create_file(&fptr, outname, &status)) {
fits_report_error(stderr, status);
@ -47,7 +60,7 @@ if ( fits_create_img(fptr, bitpix, naxis, naxes, &status) ) {
}
sz = naxes[0]*naxes[1];
if ( fits_write_img(fptr, TFLOAT, 1, sz, src->R, &status) ) {
if ( fits_write_img(fptr, TFLOAT, 1, sz, pplane, &status) ) {
fits_report_error(stderr, status);
return -10;
}
@ -60,6 +73,26 @@ if ( fits_close_file(fptr, &status) ) {
return 0;
}
/* --------------------------------------------------------------------- */
int fimg_save_R_as_fits(FloatImg *src, char *outname, int flags)
{
int retv;
retv = fimg_save_plane_as_fits(src, outname, 'r', flags);
return retv;
}
/* --------------------------------------------------------------------- */
int fimg_save_G_as_fits(FloatImg *src, char *outname, int flags)
{
int retv;
retv = fimg_save_plane_as_fits(src, outname, 'g', flags);
return retv;
}
/* --------------------------------------------------------------------- */
int fimg_save_B_as_fits(FloatImg *src, char *outname, int flags)
{
int retv;
retv = fimg_save_plane_as_fits(src, outname, 'b', flags);
return retv;
}
/************************************************************
***** MAGIC CODE FROM OUTERSPACE ?