1 files changed, 21 insertions, 0 deletions
diff --git a/src/3rdparty/autotrace/image-proc.h b/src/3rdparty/autotrace/image-proc.h
new file mode 100644
index 0000000..5c131a7
--- /dev/null
+++ b/src/3rdparty/autotrace/image-proc.h
@@ -0,0 +1,21 @@
+/* image-proc.h: image processing routines */
+
+#ifndef IMAGE_PROC_H
+#define IMAGE_PROC_H
+
+#include "bitmap.h"
+#include "color.h"
+
+typedef struct {
+  unsigned height, width;
+  float **weight;
+  float **d;
+} at_distance_map;
+
+/* Allocate and compute a new distance map. */
+extern at_distance_map new_distance_map(at_bitmap *, unsigned char target_value, gboolean padded, at_exception_type * exp);
+
+/* Free the dynamically-allocated storage associated with a distance map. */
+extern void free_distance_map(at_distance_map *);
+
+#endif /* not IMAGE_PROC_H */