added a second killcolors function

.gitignore

@@ -5,7 +5,6 @@ lib/*.fimg
 lib/*.png
 lib/*.gif
 
-funcs/*.o
 
 *.a
 gmon.out
@@ -26,7 +25,9 @@ doc/*.ilg
 doc/*.ind
 
 funcs/t
+funcs/*.o
 funcs/*.png
+funcs/*.gif
 
 scripts/*.fimg
 scripts/*.pnm

floatimg.h

@@ -78,6 +78,7 @@ int fimg_maximum(FloatImg *a, FloatImg *b, FloatImg *d);
 
 /*	'sfx0' module 			*/
 int fimg_killcolors_a(FloatImg *fimg, float fval);
+int fimg_killcolors_b(FloatImg *fimg, float fval);
 
 
 /*	PNM files module		*/

funcs/sfx0.c

@@ -22,14 +22,32 @@ if (FIMG_TYPE_RGB != fimg->type) {
 	}
 
 nbpix = fimg->width * fimg->height;
-
 for (foo=0; foo<nbpix; foo++) {
-
 	if (fimg->R[foo] > fimg->G[foo])
 		fimg->B[foo] = fimg->R[foo];
 	else
 		fimg->B[foo] = fimg->G[foo];
-	
+		}
+
+return 0;
+}
+/* --------------------------------------------------------------------- */
+int fimg_killcolors_b(FloatImg *fimg, float fval)
+{
+int		nbpix, foo;
+
+if (FIMG_TYPE_RGB != fimg->type) {
+	fprintf(stderr, "%s: bad src type %d on %p\n", __func__,
+					fimg->type, fimg);
+	return -8;
+	}
+
+nbpix = fimg->width * fimg->height;
+for (foo=0; foo<nbpix; foo++) {
+	if (fimg->R[foo] > fimg->B[foo])
+		fimg->G[foo] = fimg->R[foo];
+	else
+		fimg->G[foo] = fimg->B[foo];
 		}
 
 return 0;

funcs/t.c

@@ -18,14 +18,23 @@ int essai_sfx0(char *infile)
 FloatImg	fimg;
 int		foo;
 
+if (NULL != infile) {
+	fprintf(stderr, "loading %s\n", infile);
+	fimg_create_from_dump(infile, &fimg);
+	}
+else	{
 	fimg_create(&fimg, 512, 512, FIMG_TYPE_RGB);
-
 	fimg_draw_something(&fimg);
+	}
+
 foo = fimg_save_as_pnm(&fimg, "something.pnm", 0);
 
 foo = fimg_killcolors_a(&fimg, 0.0);
+foo = fimg_save_as_pnm(&fimg, "colorskilled-a.pnm", 0);
+
+foo = fimg_killcolors_b(&fimg, 0.0);
+foo = fimg_save_as_pnm(&fimg, "colorskilled-b.pnm", 0);
 
-foo = fimg_save_as_pnm(&fimg, "colorskilled.pnm", 0);
 
 return 0;
 }
@@ -125,7 +134,7 @@ int		foo;
 
 puts("++++++++++++++++++++++++++++++++");
 
-foo = essai_sfx0(NULL);
+foo = essai_sfx0("03384.fimg");
 
 return 0;
 }