int overscansub_x(int npx, int npy,
float *f, float *g,
int efminx, int efmaxx,
int osminx, int osmaxx,
int ymin, int ymax)
{
int i,j,n;
float *dat;
float v;
dat=(float*)malloc((osmaxx-osminx+1)*sizeof(float));
for(j=ymin;j<=ymax;j++)
{
n=0;
for(i=osminx;i<=osmaxx;i++)
{
/* in fact, pixignr check is required, but not impl.*/
dat[n]=f[i+j*npx];
n++;
}
v=floatmedian(n,dat);
for(i=efminx;i<=efmaxx;i++)
g[i+j*npx]=f[i+j*npx]-v;
for(i=osminx;i<=osmaxx;i++)
g[i+j*npx]=f[i+j*npx]-v;
}
free(dat);
return 0;
}
float Tukey(int ndat,float *dat)
{
int niter=10;
int n,i;
float s;
float t,u,c;
double sdenom,snumer;
s=floatMAD(ndat,dat)/0.6745;
t=floatmedian(ndat,dat);
c=6.0; /* is recommended in Numerical Recipes */
for(n=0;n<niter;n++)
{
snumer=0;
sdenom=0;
for(i=0;i<ndat;i++)
{
u=(dat[i]-t)/(c*s);
if(u<1 && u>-1)
{
snumer+=dat[i]*(1.-u*u)*(1.-u*u);
sdenom+=(1.-u*u)*(1.-u*u);
}
}
if(sdenom!=0)
{
t=snumer/sdenom;
}
else
{
c*=1.1;
}
}
return t;
}
int main(int argc,char *argv[])
{
struct imh imhin={""},imhout={""};
struct icom icomin={0},icomout={0};
char fnamin[100]="";
char fnamout[100]="";
char tmp[100]="";
FILE *fp,*fp2;
float dp[XMAX];
float data[OSMAX]; /* temporary */
int ix,iy;
int xmin=-1,xmax=-1,ymin=-1,ymax=-1;
int offst;
float bzero=0,bscale=1.0,bzero_new=FLT_MIN,bscale_new=FLT_MIN;
float blank_new=FLT_MIN;
float pixignr=INT_MIN;
int fitsdtype=-1;
int efpmin1,efprng1,efpmin2,efprng2;
int j=0;
char dtype[BUFSIZ]="";
int fit_param=-1;
float os[4096];
int notrim=0;
getargopt opts[20];
char *files[3]={NULL};
int n=0;
int helpflag;
files[0]=fnamin;
files[1]=fnamout;
setopts(&opts[n++],"-xmin=", OPTTYP_INT , &xmin,
"effective region (default:0)");
setopts(&opts[n++],"-xmax=", OPTTYP_INT , &xmax,
"effective region (default:npx-1)");
setopts(&opts[n++],"-ymin=", OPTTYP_INT , &ymin,
"effective region (default:0)");
setopts(&opts[n++],"-ymax=", OPTTYP_INT , &ymax,
"effective region (default:npy-1)");
setopts(&opts[n++],"-notrim", OPTTYP_FLAG , ¬rim,
"not trim off(default:trim)",1);
/* */
setopts(&opts[n++],"-bzero=", OPTTYP_FLOAT , &bzero_new,
"bzero");
setopts(&opts[n++],"-bscale=", OPTTYP_FLOAT , &bscale_new,
"bscale");
setopts(&opts[n++],"-dtype=", OPTTYP_STRING , dtype,
"datatyp(FITSFLOAT,FITSSHORT...)");
setopts(&opts[n++],"-pixignr=", OPTTYP_FLOAT , &blank_new,
"pixignr value");
/*
setopts(&opts[n++],"-fit", OPTTYP_FLAG , &fit_param,
"fitting (default:no)",1);
*/
setopts(&opts[n++],"",0,NULL,NULL);
helpflag=parsearg(argc,argv,opts,files,NULL);
if(fnamout[0]=='\0')
{
fprintf(stderr,"Error: No input file specified!!\n");
helpflag=1;
}
if(helpflag==1)
{
print_help("Usage: osmed4 <options> [filein] [fileout]",
opts,
"");
exit(-1);
}
/*
* ... Open Input
*/
(void)printf("\n Input = %s\n",fnamin );
if( (fp = imropen ( fnamin, &imhin, &icomin )) == NULL )
{
print_help("Usage: %s <options> [filein] [fileout]",
opts,
"");
exit(-1);
}
imget_fits_value(&icomin,"EFP-MIN1",tmp);
efpmin1=atoi(tmp);
imget_fits_value(&icomin,"EFP-MIN2",tmp);
efpmin2=atoi(tmp);
imget_fits_value(&icomin,"EFP-RNG1",tmp);
efprng1=atoi(tmp);
imget_fits_value(&icomin,"EFP-RNG2",tmp);
efprng2=atoi(tmp);
#if 0 /* included in imc_WCS 2002/05/07 */
/* 2000/09/26 */
imget_fits_value(&icomin,"CRPIX1",tmp);
crpix1=atof(tmp);
imget_fits_value(&icomin,"CRPIX2",tmp);
crpix2=atof(tmp);
#endif
if(xmin<0&&xmax<0&&ymin<0&&ymax<0)
{
xmin=efpmin1-1;
ymin=efpmin2-1;
xmax=xmin+efprng1-1;
ymax=ymin+efprng2-1;
}
/*
printf("xmin %d xmax %d ymin %d ymax %d\n",
xmin,xmax,ymin,ymax);
*/
if (xmin<0) xmin=0;
if (xmax>imhin.npx-1||xmax<xmin) xmax=imhin.npx-1;
if (ymin<0) ymin=0;
if (ymax>imhin.npy-1||ymax<ymin) ymax=imhin.npy-1;
printf("(%d,%d) - (%d,%d)\n",
xmin,ymin,xmax,ymax);
/* output */
imh_inherit(&imhin,&icomin,&imhout,&icomout,fnamout);
if(!notrim)
{
imhout.npx = (xmax - xmin + 1);
imhout.npy = (ymax - ymin + 1);
imhout.ndatx = imhout.npx;
imhout.ndaty = imhout.npy;
}
/* !! need 2000/07/02 or later version of IMC */
if(dtype[0]=='\0')
imc_fits_get_dtype( &imhout, &fitsdtype, &bzero, &bscale, &offst );
else
if ((fitsdtype=imc_fits_dtype_string(dtype))==-1)
{
printf("\nWarning: Unknown fits dtype %s. Inheriting original.\n",dtype);
imc_fits_get_dtype( &imhout, &fitsdtype, &bzero, &bscale, &offst );
}
if(bzero_new!=FLT_MIN)
{
bzero=bzero_new;
}
if(bscale_new!=FLT_MIN)
{
bscale=bscale_new;
}
(void)imc_fits_set_dtype( &imhout, fitsdtype, bzero, bscale );
if(blank_new!=FLT_MIN)
imset_pixignr(&imhout,&icomout,(int)blank_new);
else
{
pixignr=(float)imget_pixignr(&imhin);
imset_pixignr(&imhout,&icomout,(int)pixignr);
}
if (fit_param>0)
{
imaddhist(&icomout,"OSMED4: Overscan value is smoothed");
}
else
{
imaddhist(&icomout,"OSMED4: Overscan median is subtracted line by line.");
}
if (!notrim)
{
imaddhistf(&icomout,"OSMED4: And extracted [%d:%d,%d:%d] (0-origin)",
xmin,xmax,ymin,ymax);
}
(void)printf("\n Output = %s\n",fnamout );
/* 2000/09/26 EFP-MIN revise */
/* 2001/09/17 debug */
if(efpmin1-xmin<1)
{
efprng1-=(xmin+1-efpmin1);
efpmin1=xmin+1;
}
if(efpmin1-1+efprng1-1>=xmax)
{
efprng1=xmax-(efpmin1-1)+1;
}
if(efpmin2-ymin<1)
{
efprng2-=(ymin+1-efpmin2);
efpmin2=ymin+1;
}
if(efpmin2-2+efprng2-1>=ymax)
{
efprng2=ymax-(efpmin2-1)+1;
}
if(!notrim)
{
imupdate_fitsf(&icomout, "EFP-MIN1",IMC_FITS_INTFORM,
efpmin1-xmin,
"Start position of effective frame in axis-1");
imupdate_fitsf(&icomout, "EFP-MIN2",IMC_FITS_INTFORM,
efpmin2-ymin,
"Start position of effective frame in axis-2");
imupdate_fitsf(&icomout, "EFP-RNG1",IMC_FITS_INTFORM,
xmax-xmin+1,
"Range of effective frame in axis-1");
imupdate_fitsf(&icomout, "EFP-RNG2",IMC_FITS_INTFORM,
ymax-ymin+1,
"Range of effective frame in axis-2");
#if 0
/* 2000/09/26 CRPIX revise */
imupdate_fitsf(&icomout, "CRPIX1",
"%20.1f / %-47.47s",
crpix1-(float)xmin,
"Reference pixel coordinate system in axis1");
imupdate_fitsf(&icomout, "CRPIX2",
"%20.1f / %-47.47s",
crpix2-(float)ymin,
"Reference pixel coordinate system in axis2");
#else
imc_shift_WCS(&icomout,(float)xmin,(float)ymin);
#endif
}
for( iy=0; iy<imhin.npy; iy++ )
{
j=0;
(void) imrl_tor( &imhin, fp, dp, iy );
for( ix=0; ix<xmin; ix++ )
{
data[j++]=dp[ix];
}
for(ix=xmax+1;ix<imhin.npx;ix++)
{
data[j++]=dp[ix];
}
os[iy]=floatmedian(j,data);
}
/* fit, if needed, not implemented */
/**** OPEN output ****/
if( (fp2 = imwopen( fnamout, &imhout, &icomout )) == NULL )
{
(void) imclose(fp,&imhin,&icomin);
print_help("Usage: %s <options> [filein] [fileout]",
opts,
"");
exit(-1);
}
if (notrim)
{
xmin=0;
xmax=imhin.npx-1;
}
for( iy=0; iy<imhin.npy; iy++ )
{
j=0;
(void) imrl_tor( &imhin, fp, dp, iy );
for(ix=xmin;ix<=xmax;ix++)
dp[ix]-=os[iy];
(void) imwl_rto( &imhout, fp2, dp+xmin, iy);
}
(void) imclose(fp,&imhin,&icomin);
(void) imclose(fp2,&imhout,&icomout);
return 0;
}
