1 files changed, 20 insertions, 0 deletions
diff --git a/include/lib/algo/flood_fill.h b/include/lib/algo/flood_fill.h
new file mode 100644
index 0000000..a48f4a1
--- /dev/null
+++ b/include/lib/algo/flood_fill.h
@@ -0,0 +1,20 @@
+#ifndef INC_LIB_ALGO_FLOOD_FILL_H
+#define INC_LIB_ALGO_FLOOD_FILL_H
+
+#include <lib/bool.h>
+#include <lib/color.h>
+#include <stddef.h>
+#include <stdint.h>
+
+//-----------------------------------------------
+// Flood
+// Floods a mask from a given set of image to determine the contiguous regions
+//  1. Check that the (x,y) is within the picture
+//  2. Check if the (x,y) coordinate in the mask is unused
+//  3. Check if the (x,y) coordinate in the image is non-background
+//  4. Check if the (x,y) coordinate in the image is the same color as the fill color
+//  5. If all hold, set the label for the pixel, and check each neighbor
+//     Otherwise, stop flooding
+bool_t flood(uint8_t* image, uint16_t* mask, size_t width, size_t height, size_t channels, size_t x, size_t y, uint8_t* fill_color, uint16_t label);
+
+#endif