Changeset 2654

Timestamp:

08/03/08 05:31:20 (5 years ago)

Author:

sam

Message:

• ostromoukhov.c: Ostromoukhov's simple error diffusion algorithm.

Location:

libpipi/trunk

Files:

• examples/dither.c (modified) (2 diffs)
• pipi/Makefile.am (modified) (1 diff)
• pipi/dither/ostromoukhov.c (added)
• pipi/pipi.h (modified) (1 diff)

libpipi/trunk/examples/dither.c

@@ -18 +18 @@
         fprintf(stderr, "Usage: %s <src> <method> <dest>\n", argv[0]);
         fprintf(stderr, "Where <method> is one of:\n");
-        fprintf(stderr, "  1   Floyd-Steinberg\n");
-        fprintf(stderr, "  2   Direct binary search\n");
+        fprintf(stderr, "  1   Floyd-Steinberg (serpentine)\n");
+        fprintf(stderr, "  2   Ostromoukhov (serpentine)\n");
+        fprintf(stderr, "  3   Direct binary search\n");
         return EXIT_FAILURE;
     }
@@ -31 +32 @@
     switch(atoi(argv[2]))
     {
+        case 3:
+            newimg = pipi_dbs(img); break;
         case 2:
-            newimg = pipi_dbs(img); break;
+            newimg = pipi_ostromoukhov(img); break;
         case 1:
         default:

libpipi/trunk/pipi/Makefile.am

@@ -31 +31 @@
         filter/blur.c \
         dither/floydsteinberg.c \
+        dither/ostromoukhov.c \
         dither/dbs.c \
         $(NULL)

libpipi/trunk/pipi/pipi.h

@@ -70 +70 @@
 
 extern pipi_image_t *pipi_floydsteinberg(pipi_image_t *);
+extern pipi_image_t *pipi_ostromoukhov(pipi_image_t *);
 extern pipi_image_t *pipi_dbs(pipi_image_t *);
 extern void pipi_dither_24to16(pipi_image_t *);