refactoring

imagelib/draw.py

@@ -0,0 +1,13 @@
+import numpy as np
+import cv2
+
+def draw_polygon (image, points, color, thickness = 1):
+    points_len = len(points)
+    for i in range (0, points_len):
+        p0 = tuple( points[i] )
+        p1 = tuple( points[ (i+1) % points_len] )
+        cv2.line (image, p0, p1, color, thickness=thickness)
+
+def draw_rect(image, rect, color, thickness=1):
+    l,t,r,b = rect
+    draw_polygon (image, [ (l,t), (r,t), (r,b), (l,b ) ], color, thickness)