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working on histogram computation

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tth 2020-09-03 01:37:53 +02:00
parent 4b2d2c264f
commit 951dc4450f
3 changed files with 41 additions and 5 deletions
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5
funcs/Makefile
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@ -4,7 +4,7 @@ COPT = -Wall -fpic -g -no-pie -DDEBUG_LEVEL=0
DEPS = ../floatimg.h Makefile DEPS = ../floatimg.h Makefile
OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o \ OBJS = fimg-png.o fimg-tiff.o misc-plots.o filtrage.o utils.o \
fimg-libpnm.o rampes.o sfx0.o geometry.o rotate.o \ fimg-libpnm.o rampes.o sfx0.o geometry.o rotate.o \
equalize.o fimg-fits.o saturation.o equalize.o fimg-fits.o saturation.o histogram.o
#--------------------------------------------------------------- #---------------------------------------------------------------
@ -45,6 +45,9 @@ rotate.o: rotate.c $(DEPS)
saturation.o: saturation.c $(DEPS) saturation.o: saturation.c $(DEPS)
gcc $(COPT) -c $< gcc $(COPT) -c $<
histogram.o: histogram.c $(DEPS)
gcc $(COPT) -c $<
equalize.o: equalize.c $(DEPS) equalize.o: equalize.c $(DEPS)
gcc $(COPT) -c $< gcc $(COPT) -c $<

6
funcs/equalize.c
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@ -34,9 +34,9 @@ dr = minmax[1] - minmax[0];
dg = minmax[3] - minmax[2]; dg = minmax[3] - minmax[2];
db = minmax[5] - minmax[4]; db = minmax[5] - minmax[4];
printf("Rmin %12.4g Rmax %12.4g delta %12.4g\n", minmax[0], minmax[1], dr); printf("Rmin %12.4g Rmax %12.4g delta %12.4g\n", minmax[0], minmax[1], dr);
printf("Gmin %12.4g Gmax %12.4g delta %12.4g\n", minmax[2], minmax[3], dg); printf("Gmin %12.4g Gmax %12.4g delta %12.4g\n", minmax[2], minmax[3], dg);
printf("Bmin %12.4g Bmax %12.4g delta %12.4g\n", minmax[4], minmax[5], db); printf("Bmin %12.4g Bmax %12.4g delta %12.4g\n", minmax[4], minmax[5], db);
if ( (minmax[0]<0.0) || (minmax[2]<0.0) || (minmax[4]<0.0) ) { if ( (minmax[0]<0.0) || (minmax[2]<0.0) || (minmax[4]<0.0) ) {
fprintf(stderr, "%s: negative value ?\n", __func__); fprintf(stderr, "%s: negative value ?\n", __func__);

35
funcs/t.c
View File

@ -401,7 +401,36 @@ fprintf(stderr, "save as png -> %d\n", foo);
return 0; return 0;
} }
/* --------------------------------------------------------------------- */ /* --------------------------------------------------------------------- */
enum nCmd { Equalize=1, Rotate, Sfx0, F3x3, MIRE, Wfits, Wpng, Wtiff };
/* func in histogram.c */
int fimg_essai_histo(FloatImg *src, char *outpic, int k);
int essai_histogramme(char *fname, int k)
{
FloatImg fimg;
int foo;
fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, fname, k);
foo = fimg_create_from_dump(fname, &fimg);
if (foo) {
fprintf(stderr, "%s: err load '%s'\n", __func__, fname);
return foo;
}
foo = fimg_essai_histo(&fimg, "out.png", k);
if (foo) {
fprintf(stderr, "essai_histo -> %d\n", foo);
return foo;
}
fprintf(stderr, "\\o/ end of %s\n", __func__);
return -1;
}
/* --------------------------------------------------------------------- */
enum nCmd { Equalize=1, Rotate, Sfx0, F3x3, MIRE, Wfits, Wpng, Wtiff,
Histo };
typedef struct { typedef struct {
char *name; char *name;
int Cmd; int Cmd;
@ -416,6 +445,7 @@ Command commands[] = {
{ "wfits", Wfits }, { "wfits", Wfits },
{ "wpng", Wpng }, { "wpng", Wpng },
{ "wtiff", Wtiff }, { "wtiff", Wtiff },
{ "histo", Histo },
{ NULL, 0 } { NULL, 0 }
} ; } ;
@ -506,6 +536,9 @@ switch(opt) {
case Wtiff: case Wtiff:
foo = essai_ecriture_tiff(filename); foo = essai_ecriture_tiff(filename);
break; break;
case Histo:
foo = essai_histogramme(filename, 0);
break;
default: default:
fprintf(stderr, "%s : bad command\n", command); fprintf(stderr, "%s : bad command\n", command);
exit(1); exit(1);