int main(int argc, char *argv[])
{
fitsfile *afptr, *outfptr; /* FITS file pointers */
int status = 0; /* CFITSIO status value MUST be initialized to zero! */
int anaxis, check = 1, ii, op, keytype;
long npixels = 1, firstpix[3] = {1,1,1}, ntodo;
long anaxes[3] = {1,1,1};
double *apix;
double maxval, minval;
char card[FLEN_CARD];
if (argc != 5) {
printf("Usage: pruneimage image max min outimage \n");
printf("\n");
printf("Compiled from cfitsio v2.460\n");
printf("\n");
printf("Trim off the peaks and valley values of the image.\n");
printf("\n");
printf("outimage is of format BITPIX = -32\n");
printf("\n");
printf("Example: \n");
printf(" pruneimage in.fit 1000 850 out.fits - sets all values above 1000 to 1000\n");
printf(" and all values below 850 to 850.\n");
return(0);
}
fits_open_file(&afptr, argv[1], READONLY, &status); /* open input images */
fits_get_img_dim(afptr, &anaxis, &status); /* read dimensions */
fits_get_img_size(afptr, 3, anaxes, &status);
if (status) {
fits_report_error(stderr, status); /* print error message */
return(status);
}
if (anaxis > 3) {
printf("Error: images with > 3 dimensions are not supported\n");
check = 0;
}
maxval = atof ( argv[2] );
minval = atof ( argv[3] );
/* create the new empty output file if the above checks are OK */
if (check && !fits_create_file(&outfptr, argv[4], &status) )
{
/* copy all the header keywords from first image to new output file */
fits_copy_header(afptr, outfptr, &status);
/* change to floating point variable */
fits_modify_key_lng (outfptr, "BITPIX", -32, "&", &status );
fits_modify_key_flt (outfptr, "DATAMIN", minval, -10, "&", &status );
fits_modify_key_flt (outfptr, "DATAMAX", maxval, -10, "&", &status );
npixels = anaxes[0]; /* no. of pixels to read in each row */
apix = (double *) malloc(npixels * sizeof(double)); /* mem for 1 row */
if (apix == NULL) {
printf("Memory allocation error\n");
return(1);
}
/* loop over all planes of the cube (2D images have 1 plane) */
for (firstpix[2] = 1; firstpix[2] <= anaxes[2]; firstpix[2]++)
{
/* loop over all rows of the plane */
for (firstpix[1] = 1; firstpix[1] <= anaxes[1]; firstpix[1]++)
{
/* Read both images as doubles, regardless of actual datatype. */
/* Give starting pixel coordinate and no. of pixels to read. */
/* This version does not support undefined pixels in the image. */
if (fits_read_pix(afptr, TDOUBLE, firstpix, npixels, NULL, apix,
NULL, &status) )
break; /* jump out of loop on error */
for(ii=0; ii< npixels; ii++) {
if ( apix[ii] > maxval )
apix[ii] = maxval;
else if ( apix[ii] < minval )
apix[ii] = minval;
}
fits_write_pix(outfptr, TDOUBLE, firstpix, npixels,
apix, &status); /* write new values to output image */
}
} /* end of loop over planes */
fits_close_file(outfptr, &status);
free(apix);
}
fits_close_file(afptr, &status);
if (status) fits_report_error(stderr, status); /* print any error message */
return(status);
}
/* process this command */
static int ProcessCmd(char *cmd, char **args, int node, int tty)
{
int ip=0;
char tbuf[SZ_LINE];
Finfo finfo, tfinfo;
#if HAVE_CFITSIO
int x0, x1, y0, y1, bin;
int xcolnum, ycolnum, hdunum, hdutype;
int status=0, status2=0;
int dims[2];
double cens[2];
char *cols[2] = {"X", "Y"};
char *ofile=NULL;
char *omode=NULL;
fitsfile *ifptr, *ofptr, *tfptr;
#endif
switch(*cmd){
case 'f':
if( !strcmp(cmd, "fitsFile") ){
if( args && word(args[0], tbuf, &ip) ){
if( !(tfinfo=FinfoLookup(tbuf)) ){
fprintf(stderr, NOIMAGE, tbuf);
return 1;
}
} else if( !(tfinfo=FinfoGetCurrent()) ){
fprintf(stderr, NOFINFO, cmd);
return 1;
}
if( tfinfo->fitsfile ){
if( node ) fprintf(stdout, "fitsFile\r");
fprintf(stdout, "%s %s\n", tfinfo->fname, tfinfo->fitsfile);
fflush(stdout);
}
return 0;
}
break;
break;
case 'i':
if( !strcmp(cmd, "image") ){
if( !args || !word(args[0], tbuf, &ip) ){
fprintf(stderr, WRONGARGS, cmd, 1, 0);
return 1;
}
/* new image */
if( !(finfo = FinfoNew(tbuf)) ){
fprintf(stderr, NONEW, cmd);
return 1;
}
/* make it current */
FinfoSetCurrent(finfo);
if( node ) fprintf(stdout, "image\r");
/* return the FITS file name, if possible */
fprintf(stdout, "%s %s\n",
finfo->fname, finfo->fitsfile ? finfo->fitsfile : "?");
fflush(stdout);
return 0;
} else if( !strcmp(cmd, "image_") ){
if( !args || !word(args[0], tbuf, &ip) ){
fprintf(stderr, WRONGARGS, cmd, 1, 0);
return 1;
}
/* new image */
if( !(finfo = FinfoNew(tbuf)) ){
fprintf(stderr, NONEW, cmd);
return 1;
}
/* make it current */
FinfoSetCurrent(finfo);
/* no output! */
return 0;
} else if( !strcmp(cmd, "imsection") ){
#if HAVE_CFITSIO
if( !(finfo=FinfoGetCurrent()) ){
fprintf(stderr, NOFINFO, cmd);
return 1;
}
ifptr = openFITSFile(finfo->fitsfile, EXTLIST, &hdutype, &status);
if( status ){
fprintf(stderr, "ERROR: can't open FITS file '%s'\n", finfo->fitsfile);
return 1;
}
if( !args || !parseSection(args[0], &x0, &x1, &y0, &y1, &bin) ){
fprintf(stderr,
"ERROR: can't parse section for '%s' [%s]\n",
finfo->fitsfile, (args && args[1]) ? args[1] : "NONE");
return 1;
}
if( args[1] ){
omode = args[1];
} else {
omode = "native";
}
ofile = "stdout";
// create image if ifile is an image or omode is not native
if( (hdutype == IMAGE_HDU) || strcmp(omode, "native") ){
fits_create_file(&ofptr, ofile, &status);
if( status ){
fits_get_errstatus(status, tbuf);
fprintf(stderr,
"ERROR: can't open output FITS file to section '%s' [%s]\n",
finfo->fitsfile, tbuf);
return 1;
}
switch(hdutype){
case IMAGE_HDU:
if( bin != 1 ){
fprintf(stderr,
"ERROR: imsection of an image must use bin 1 for '%s'\n",
finfo->fitsfile);
return 1;
}
snprintf(tbuf, SZ_LINE-1, "%d:%d,%d:%d", x0, x1, y0, y1);
fits_copy_image_section(ifptr, ofptr, tbuf, &status);
break;
default:
dims[0] = x1 - x0 + 1;
dims[1] = y1 - y0 + 1;
cens[0] = (x0 + x1) / 2;
cens[1] = (y0 + y1) / 2;
tfptr = filterTableToImage(ifptr, NULL, cols, dims, cens, bin,
&status);
if( status ){
fits_get_errstatus(status, tbuf);
fprintf(stderr,
"ERROR: can't create image from table for '%s' [%s]\n",
finfo->fitsfile, tbuf);
return 1;
}
fits_copy_image_section(tfptr, ofptr, "*,*", &status);
closeFITSFile(tfptr, &status2);
break;
}
if( status ){
fits_get_errstatus(status, tbuf);
fprintf(stderr,
"ERROR: can't write section FITS file for '%s' [%s]\n",
finfo->fitsfile, tbuf);
closeFITSFile(ofptr, &status);
return 1;
}
closeFITSFile(ofptr, &status);
} else {
// extract (native) table
snprintf(tbuf, SZ_LINE-1,
"x >= %d && x <= %d && y >= %d && y <= %d",
x0, x1, y0, y1);
// ffselect_table(&ifptr, ofile, tbuf, &status);
// copied from cfileio.c/ffselect_table()
/* create new empty file to hold copy of the image */
if (ffinit(&ofptr, ofile, &status) > 0) {
fits_get_errstatus(status, tbuf);
fprintf(stderr,
"ERROR: can't init section file for '%s' [%s]\n",
finfo->fitsfile, tbuf);
return 1;
}
/* save current HDU number in input file */
fits_get_hdu_num(ifptr, &hdunum);
/* copy the primary array */
fits_movabs_hdu(ifptr, 1, NULL, &status);
if( fits_copy_hdu(ifptr, ofptr, 0, &status) > 0){
fits_get_errstatus(status, tbuf);
fprintf(stderr,
"ERROR: can't copy primary for section file '%s' [%s]\n",
finfo->fitsfile, tbuf);
fits_close_file(ofptr, &status);
return 1;
}
/* back to current hdu */
fits_movabs_hdu(ifptr, hdunum, NULL, &status);
/* copy all the header keywords from the input to output file */
if (fits_copy_header(ifptr, ofptr, &status) > 0){
fits_get_errstatus(status, tbuf);
fprintf(stderr,
"ERROR: can't copy header for section file '%s' [%s]\n",
finfo->fitsfile, tbuf);
fits_close_file(ofptr, &status);
return 1;
}
/* set number of rows = 0 */
/* warning: start of cfitsio black magic */
fits_modify_key_lng(ofptr, "NAXIS2", 0, NULL, &status);
(ofptr->Fptr)->numrows = 0;
(ofptr->Fptr)->origrows = 0;
/* force the header to be scanned */
if (ffrdef(ofptr, &status) > 0){
fits_get_errstatus(status, tbuf);
fprintf(stderr,
"ERROR: can't rdef for section file '%s' [%s]\n",
finfo->fitsfile, tbuf);
fits_close_file(ofptr, &status);
return 1;
}
/* warning: end of cfitsio black magic */
/* select filtered rows and write to output file */
if (fits_select_rows(ifptr, ofptr, tbuf, &status) > 0){
fits_get_errstatus(status, tbuf);
fprintf(stderr,
"ERROR: can't select rows for section file '%s' [%s]\n",
finfo->fitsfile, tbuf);
fits_close_file(ofptr, &status);
return 1;
}
/* update params for this section */
if( (fits_get_colnum(ofptr, CASEINSEN, "X", &xcolnum, &status) > 0) ||
(fits_get_colnum(ofptr, CASEINSEN, "Y", &ycolnum, &status) > 0) ){
fits_get_errstatus(status, tbuf);
fprintf(stderr,
"ERROR: can't find X,Y cols for section file '%s' [%s]\n",
finfo->fitsfile, tbuf);
fits_close_file(ofptr, &status);
return 1;
}
/* we can ignore errors here */
status = 0;
snprintf(tbuf, SZ_LINE-1, "TALEN%d", xcolnum);
fits_modify_key_lng(ofptr, tbuf, x1-x0, NULL, &status);
status = 0;
snprintf(tbuf, SZ_LINE-1, "TALEN%d", ycolnum);
fits_modify_key_lng(ofptr, tbuf, y1-y0, NULL, &status);
status = 0;
snprintf(tbuf, SZ_LINE-1, "TLMIN%d", xcolnum);
fits_modify_key_flt(ofptr, tbuf, x0, 6, NULL, &status);
status = 0;
snprintf(tbuf, SZ_LINE-1, "TLMAX%d", xcolnum);
fits_modify_key_flt(ofptr, tbuf, x1, 6, NULL, &status);
status = 0;
snprintf(tbuf, SZ_LINE-1, "TLMIN%d", ycolnum);
fits_modify_key_flt(ofptr, tbuf, y0, 6, NULL, &status);
status = 0;
snprintf(tbuf, SZ_LINE-1, "TLMAX%d", ycolnum);
fits_modify_key_flt(ofptr, tbuf, y1, 6, NULL, &status);
/* close the output file */
status = 0;
fits_close_file(ofptr, &status);
}
closeFITSFile(ifptr, &status);
return 0;
#else
fprintf(stderr,
"ERROR: for section support, build js9helper with cfitsio\n");
return 1;
#endif
} else if( !strcmp(cmd, "info") ){
if( tty ){
if( !(finfo=FinfoGetCurrent()) ){
fprintf(stderr, NOFINFO, cmd);
return 1;
}
/* make sure we have a wcs */
fprintf(stdout, "fname:\t%s\n", finfo->fname);
fprintf(stdout, "fits:\t%s\n", finfo->fitsfile?finfo->fitsfile:"N/A");
fflush(stdout);
}
return 0;
}
break;
case 'l':
/* list all images */
if( !strcmp(cmd, "list") ){
FinfoList(stdout);
return 0;
}
break;
case 's':
if( !strcmp(cmd, "setDataPath") ){
if( args && word(args[0], tbuf, &ip) ){
setenv("JS9_DATAPATH", tbuf, 1);
if( node ) fprintf(stdout, "setDataPath\r");
fprintf(stdout, "%s\n", getenv("JS9_DATAPATH"));
fflush(stdout);
} else {
fprintf(stderr, WRONGARGS, cmd, 1, 0);
return 1;
}
return 0;
}
break;
case 'u':
if( !strcmp(cmd, "unimage") ){
if( !args || !word(args[0], tbuf, &ip) ){
fprintf(stderr, WRONGARGS, cmd, 1, 0);
return 1;
}
/* close this image */
FinfoFree(tbuf);
return 0;
}
break;
case '#':
case '\0':
return 0;
default:
break;
}
/* if we reached here, we did not recognize the command */
fprintf(stderr, "ERROR: unknown command '%s'\n", cmd);
/* return the news */
return 2;
}