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add median filter

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This commit is contained in:
Edward Emelianov
2021-08-24 12:19:52 +03:00
parent 9d76c96602
commit 4ef3ae7605
12 changed files with 206 additions and 126 deletions
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20
LocCorr/median.c
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@@ -28,6 +28,7 @@
#include <string.h>
#include <usefull_macros.h>
#include "config.h"
#include "imagefile.h"
#include "median.h"
@@ -390,8 +391,8 @@ Image *get_median(const Image *img, int seed){
* @retur 0 if error
*/
int get_stat(const Image *in, int seed, Image **mean, Image **std){
if(!in) return 0;
if(seed < 1 || seed > (in->width - 1)/2 || seed > (in->height - 1)/2) return 0;
if(!in) return FALSE;
if(seed < 1 || seed > (in->width - 1)/2 || seed > (in->height - 1)/2) return FALSE;
#ifdef EBUG
double t0 = dtime();
#endif
@@ -434,7 +435,7 @@ int get_stat(const Image *in, int seed, Image **mean, Image **std){
*std = S;
}
DBG("time for mean/sigma computation: %gs", dtime() - t0);
return 1;
return TRUE;
}
/**
@@ -445,14 +446,19 @@ int get_stat(const Image *in, int seed, Image **mean, Image **std){
*/
int calc_background(Image *img, Imtype *bk){
//DBG("image: min=%g, max=%g", img->minval, img->maxval);
if(!img || !bk) return FALSE;
if(img->maxval - img->minval < DBL_EPSILON){
WARNX("Zero image!");
WARNX("Zero or overilluminated image!");
return FALSE;
}
if(theconf.fixedbkg){
*bk = theconf.fixedbkg;
return TRUE;
}
int w = img->width, h = img->height, wh = w*h;
Imtype min = img->minval, ampl = img->maxval - min;
int histogram[256] = {0};
//DBG("min: %g, max: %g, ampl: %g", min, img->maxval, ampl);
DBG("min: %g, max: %g, ampl: %g", min, img->maxval, ampl);
#pragma omp parallel
{
int histogram_private[256] = {0};
@@ -492,8 +498,8 @@ int calc_background(Image *img, Imtype *bk){
//borderidx = (borderidx + modeidx) / 2;
Imtype borderval = ((Imtype)borderidx / 255.)*ampl + min;
if(bk) *bk = borderval;
// green("HISTO:\n");
// for(int i = 0; i < 256; ++i) printf("%d:\t%d\t%d\n", i, histogram[i], diff2[i]);
//green("HISTO:\n");
//for(int i = 0; i < 256; ++i) printf("%d:\t%d\t%d\n", i, histogram[i], diff2[i]);
// calculate values of upper 2% border
#if 0
Image *out = Image_sim(img);