pimping fimg2png

floatimg.h

@@ -2,7 +2,7 @@
  *	floatimg.h
  */
 
-#define		FIMG_VERSION	87
+#define		FIMG_VERSION	88
 
 /*
  *	in memory descriptor
@@ -57,7 +57,6 @@ int   fimg_print_version(int k);
 void  fimg_printhead(FloatImg *h);
 int   fimg_describe(FloatImg *head, char *txt);
 char *fimg_str_type(int type);
-int   fimg_fileinfo(char *fname, int *datas);
 int   fimg_plot_rgb (FloatImg *head, int x, int y, float r, float g, float b);
 int   fimg_clear(FloatImg *fimg);
 int   fimg_add_rgb(FloatImg *head, int x, int y, float r, float g, float b);
@@ -91,6 +90,7 @@ int fimg_cos_01(FloatImg *s, FloatImg *d, double maxval);
 int fimg_cos_010(FloatImg *s, FloatImg *d, double maxval);
 
 int fimg_mk_gray_from(FloatImg *src, FloatImg*dst, int k);
+int fimg_desaturate(FloatImg *src, FloatImg *dst, int k);
 
 /*	module funcs/rampes.c		*/
 int fimg_hdeg_a(FloatImg *img, double dcoef);

lib/fimg-2gray.c

@@ -52,6 +52,28 @@ for (foo=0; foo<nbb; foo++) {
 return 0;
 }
 /* --------------------------------------------------------------------- */
+int fimg_desaturate(FloatImg *src, FloatImg *dst, int k)
+{
+int		foo, nbb;
+float		fval;
+
+/* we must check the validity of our parameters */
+if (FIMG_TYPE_RGB != src->type || FIMG_TYPE_RGB != dst->type) {
+	fprintf(stderr, "%s : bad image type\n", __func__, src->type, src);
+	return -18;
+	}
+
+/* entering the main processing loop */
+nbb = src->width * src->height;
+
+for (foo=0; foo<nbb; foo++) {
+	dst->R[foo] = dst->G[foo] = dst->B[foo] =
+			(src->R[foo] + src->G[foo] + src->B[foo]) / 3.0;
+	}
+
+return -99;
+}
+/* --------------------------------------------------------------------- */
 
 
 

lib/interpolate.c

@@ -10,7 +10,7 @@
 
 #include  "../floatimg.h"
 
-int		verbosity;
+extern int		verbosity;
 
 /* ---------------------------------------------------------------- */
 static int gray_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef)
@@ -18,7 +18,6 @@ static int gray_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef)
 int		picsize, idx;
 
 picsize = d->width * d->height;
-
 for (idx=0; idx<picsize; idx++) {
 	d->R[idx] = (coef * s1->R[idx]) + ((1.0-coef) * s2->R[idx]);
 	}

tools/fimg2png.c

@@ -11,7 +11,7 @@
 int		verbosity;
 
 /* ----------------------------------------------------------------- */
-int convertir_fimg_en_PNG(char *srcname, char *dstname, int notused)
+int convertir_fimg_en_PNG(char *srcname, char *dstname, int grisaille)
 {
 int		foo, infos[3];
 FloatImg	fimg;
@@ -22,7 +22,10 @@ fprintf(stderr, ">>> %25s ( '%s' '%s' %d )\n", __func__,
 #endif
 
 foo = fimg_fileinfos(srcname, infos);
-if (foo) { fprintf(stderr, "'%s' get dims -> %d\n", srcname, foo); }
+if (foo) {
+	if (verbosity) fprintf(stderr, "'%s' get dims -> %d\n", srcname, foo);
+	return foo;
+	}
 
 if (verbosity) {
 	fprintf(stderr, "image '%s' is %d x %d  %s\n",
@@ -36,6 +39,10 @@ if (foo) {
 	return -1;
 	}
 
+if (grisaille) {
+	foo = fimg_desaturate(&fimg, &fimg, 0);
+	}
+
 foo = fimg_save_as_png(&fimg, dstname, 0);
 if (foo) {
 	fprintf(stderr, "saving as png '%s' -> %d\n", dstname, foo);
@@ -47,19 +54,40 @@ fimg_destroy(&fimg);
 return 0;
 }
 /* ----------------------------------------------------------------- */
+void help(int k)
+{
+
+puts("usage:\n\tfimg2png [options] foo.fimg bar.png");
+puts("options:");
+puts("\t-g\tconvert to gray");
+puts("\t-v\tincrease verbosity");
+if (verbosity) fimg_print_version(1);
+
+exit(0);
+}
+/* ----------------------------------------------------------------- */
 
 int main(int argc, char *argv[])
 {
-int		foo;
+int		foo, opt;
+int		to_gray = 0;
 
-if (3 != argc) {
-	fimg_print_version(1);
-	fprintf(stderr, "usage:\n\t%s foo.fimg bar.pnm\n", argv[0]);
+while ((opt = getopt(argc, argv, "ghv")) != -1) {
+	switch(opt) {
+		case 'g':	to_gray = 1;		break;
+		case 'v':	verbosity++;		break;
+		case 'h':	help(1);		exit(1);
+		}
+	}
+
+if (2 != argc-optind) {
+	fprintf(stderr, "error: %s need two filenames\n", argv[0]);
 	exit(1);
 	}
 
-foo = convertir_fimg_en_PNG(argv[1], argv[2], 0);
-fprintf(stderr, "%s : got a %d from convertor\n", argv[0], foo);
+foo = convertir_fimg_en_PNG(argv[optind], argv[optind+1], to_gray);
+if (verbosity)
+	fprintf(stderr, "%s : got a %d from convertor\n", argv[0], foo);
 
 return 0;
 }

v4l2/t.c

@@ -43,6 +43,7 @@ if (0 != foo)	{
 
 pr_v4l2_format("after ioctl VIDIOC_G_FMT", &fmt);
 
+/* this function is bugged */
 
 return k;
 }