central line draw instead of bounding box, text position

main.py

@@ -50,6 +50,13 @@ def near(a, b, close):
 	if abs(a-b) < close:
 		return True
 	return False
+
+def swap(a, b):
+	tmp = a
+	a = b
+	b = tmp
+
+
 # construct the argument parse and parse the arguments
 ap = argparse.ArgumentParser()
 ap.add_argument("-i", "--image", required=True,
@@ -210,7 +217,7 @@ for c in cnts:
 		rectangular = False
 		if boxiness > circleness:
 			rectangular = True
-			cv2.drawContours(orig, [box.astype("int")], -1, (0, 255, 0), 2)
+			#cv2.drawContours(orig, [box.astype("int")], -1, (0, 255, 0), 2)
 		else:
 			circular = True
 			cv2.circle(orig,(int(x),int(y)),int(radius),(0,255,0),2)
@@ -260,7 +267,22 @@ for c in cnts:
 					objtype = "Axle"
 					iteml = (radius * 2 / pixelsPerMetric + itemw) / 2
 
-				
+		rows,cols = orig.shape[:2]
+		[vx,vy,xx,yy] = cv2.fitLine(c, cv2.DIST_L2,0,0.01,0.01)
+		lefty = int((-xx*vy/vx) + yy)
+		righty = int(((cols-xx)*vy/vx)+yy)
+		#cv2.line(orig,(cols-1,righty),(0,lefty),(0,255,0),2)
+		slope = (lefty - righty) / (1 - cols)
+		angle = math.atan(slope)
+		xpos = x - math.cos(angle) * radius
+		ypos = y - math.sin(angle) * radius
+		xpos2 = x + math.cos(angle) * radius
+		ypos2 = y + math.sin(angle) * radius
+		if xpos > xpos2:
+			swap(xpos, xpos2)
+			swap(ypos, ypos2)
+		if rectangular:
+			cv2.line(orig,(int(xpos),int(ypos)),(int(xpos2), int(ypos2)),(0,255,0),2)
 		#print(str(iteml))
 		# draw the object sizes on the image
 		if args2.show:
@@ -268,23 +290,23 @@ for c in cnts:
 			#	(int(trbrX + 20), int(trbrY)), cv2.FONT_HERSHEY_SIMPLEX,
 			#	0.65, (255, 255, 255), 2)
 			cv2.putText(orig, str(objtype),
-				(int(trbrX + 20), int(trbrY)), cv2.FONT_HERSHEY_SIMPLEX,
+				(int(xpos2 + 10), int(ypos2 + 20)), cv2.FONT_HERSHEY_SIMPLEX,
 				0.65, (255, 255, 255), 2)
 			if objtype == "Unknown":
 				cv2.putText(orig, "{:.2f}in".format(itemw) + " x {:.2f}in".format(itemh), # print axle length
-					(int(trbrX + 20), int(trbrY + 20)), cv2.FONT_HERSHEY_SIMPLEX,
+					(int(xpos2 + 10), int(ypos2 + 40)), cv2.FONT_HERSHEY_SIMPLEX,
 					0.65, (255, 255, 255), 2)
 			if objtype == "Screw":
-				cv2.putText(orig, str(iteml) + "in thread", # print screw length
-					(int(trbrX + 20), int(trbrY + 20)), cv2.FONT_HERSHEY_SIMPLEX,
+				cv2.putText(orig, str(iteml) + "in", # print screw length
+					(int(xpos2 + 10), int(ypos2 + 40)), cv2.FONT_HERSHEY_SIMPLEX,
 					0.65, (255, 255, 255), 2)
 			if objtype == "Standoff":
 				cv2.putText(orig, str(iteml) + "in", # print standoff length
-					(int(trbrX + 20), int(trbrY + 20)), cv2.FONT_HERSHEY_SIMPLEX,
+					(int(xpos2 + 10), int(ypos2 + 40)), cv2.FONT_HERSHEY_SIMPLEX,
 					0.65, (255, 255, 255), 2)
 			if objtype == "Axle":
 				cv2.putText(orig, "{:.2f}in".format(iteml), # print axle length
-					(int(trbrX + 20), int(trbrY + 20)), cv2.FONT_HERSHEY_SIMPLEX,
+					(int(xpos2 + 10), int(ypos2 + 40)), cv2.FONT_HERSHEY_SIMPLEX,
 					0.65, (255, 255, 255), 2)
  
 	# show the output image