text: #ateeb
  import cv2
  import numpy as np 
  import math
  import time
  
  # NO_OF_SAMPLES should be propotional to the difference of two given points P1 and P2.
  img = cv2.imread('C:\\users\\ateeb\\desktop\\brehensen.png')
  depth_vec = []
  
  x1,y1 = 160,145
  x0,y0 = 603,296
  
  NO_OF_SAMPLES = int(((x1 - x0)**2 + (y1 - y0)**2)**0.5)
  print(NO_OF_SAMPLES)
  dx = x1 - x0
  dy = y1 - y0
  print(dx , dy)
  
  # get the equation of the form: y = mx + b
  # calculating 'b' that is: y-intercept.
  b = y1 - (dy/dx)*x1
  
  # calculating 'm' that is: slope
  m = dy/dx
  
  # interval on the x-axis
  delta_x = dx / NO_OF_SAMPLES
  x_axis = [x0 + delta_x*i for i in range(1,NO_OF_SAMPLES+1)]
  
  for x in x_axis:
  	# evaluating equation at: x
  	y = m*x + b
  	depth_vec.append((int(x) , int(y)))
  	cv2.circle(img , (int(x),int(y)) , 1 , (0,255,0), 1)
  	cv2.imshow("Image",img)
  	cv2.waitKey(1)
  
  cv2.waitKey(0)
  cv2.destroyAllWindows()
  print(len(depth_vec))
  print(depth_vec)
  
  '''
  # calculating the new equation which is of the form : f(x,y) = Ax + By + C = 0
  # where A = dy , B = -dx , C = (dx)(b)
  A = dy
  B = -dx
  C = (dx)*(b)
  
  x,y = x0,y0
  depth_vec = [(x,y)]
  
  while(True):
  	# candidate point to be evaluated:
  	mid_x , mid_y = x + 1 , y + 0.5
  
  	#evaluating the line at (mid_x , mid_y):
  	e = A*mid_x + B*mid_y + C
  
  	# selecting the next point:
  	if e >= 0:
  		x , y = x+1 , y+1
  	elif e < 0:
  		x , y = x+1 , y
  
  	# appending the selected point in the depth_vec:
  	depth_vec.append((x,y))
  	cv2.circle(img , (x,y) , 1 , (0,255,0), 1)
  	cv2.imshow("Image",img)
  	cv2.waitKey(2)
  	
  	# checking the stopping condition:
  	if x == x1 and y == y1:#) or (x== x1+1 and y == y1+1):
  		cv2.waitKey(0)
  		cv2.destroyAllWindows()
  		break
  '''