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comparison trafficintelligence/cvutils.py @ 1112:956a66096e91

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removed code now available in simulation project, and issue with deprecated find function in matplotlib
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Wed, 05 Jun 2019 13:12:10 -0400
parents c6cf75a2ed08
children b358bed29ab4
comparison
equal deleted inserted replaced
1111:345cd9cd62d8 1112:956a66096e91
5 from os import listdir 5 from os import listdir
6 from subprocess import run 6 from subprocess import run
7 from math import floor, log10, ceil 7 from math import floor, log10, ceil
8 from time import time 8 from time import time
9 9
10 from numpy import dot, array, append, float32, loadtxt, savetxt, append, zeros, ones, identity, abs as npabs, logical_and, unravel_index, sum as npsum, isnan, mgrid, median, floor as npfloor, ceil as npceil 10 from numpy import dot, array, append, float32, loadtxt, savetxt, append, zeros, ones, identity, abs as npabs, logical_and, unravel_index, sum as npsum, isnan, mgrid, median, floor as npfloor, ceil as npceil, nonzero
11 from numpy.linalg import inv 11 from numpy.linalg import inv
12 from matplotlib.mlab import find
13 from matplotlib.pyplot import imread, imsave, imshow, figure, subplot 12 from matplotlib.pyplot import imread, imsave, imshow, figure, subplot
14 13
15 try: 14 try:
16 import cv2 15 import cv2
17 opencvAvailable = True 16 opencvAvailable = True
426 to distorted (original image) 425 to distorted (original image)
427 map1(x,y) = originalx, originaly''' 426 map1(x,y) = originalx, originaly'''
428 distx = npabs(map1-x) 427 distx = npabs(map1-x)
429 disty = npabs(map2-y) 428 disty = npabs(map2-y)
430 indices = logical_and(distx<maxDistance, disty<maxDistance) 429 indices = logical_and(distx<maxDistance, disty<maxDistance)
431 closeCoordinates = unravel_index(find(indices), distx.shape) # returns i,j, ie y,x 430 closeCoordinates = unravel_index(nonzero(indices), distx.shape) # returns i,j, ie y,x
432 xWeights = 1-distx[indices] 431 xWeights = 1-distx[indices]
433 yWeights = 1-disty[indices] 432 yWeights = 1-disty[indices]
434 return dot(xWeights, closeCoordinates[1])/npsum(xWeights), dot(yWeights, closeCoordinates[0])/npsum(yWeights) 433 return dot(xWeights, closeCoordinates[1])/npsum(xWeights), dot(yWeights, closeCoordinates[0])/npsum(yWeights)
435 434
436 def undistortTrajectoryFromCVMapping(map1, map2, t): 435 def undistortTrajectoryFromCVMapping(map1, map2, t):