--- a/trafficintelligence/cvutils.py	Fri Mar 22 14:33:25 2024 -0400
+++ b/trafficintelligence/cvutils.py	Mon Mar 25 17:05:20 2024 -0400
@@ -30,6 +30,7 @@
 trackerExe = 'feature-based-tracking'
 #importaggdraw # agg on top of PIL (antialiased drawing)
 
+colors = 'rgbcymk'
 cvRed = {'default': (0,0,255),
          'colorblind': (0,114,178)}
 cvGreen = {'default': (0,255,0),
@@ -534,7 +535,10 @@
 
 def cartesian2Homogeneous(m):
     'Transforms n x m matrix to n x (m+1) by adding last column of 1s'
-    homoM = ones((m.shape[0], m.shape[1]+1))
+    if len(m.shape) == 2:
+        homoM = ones((m.shape[0], m.shape[1]+1))
+    else:
+        homoM = ones((1, len(m)+1))
     homoM[:,:-1] = m
     return homoM