Mercurial Hosting > traffic-intelligence
view scripts/rescale-homography.py @ 947:053484e08947
found a more elegant solution, making a copy of the list to iterate
author | Nicolas Saunier <nicolas.saunier@polymtl.ca> |
---|---|
date | Fri, 21 Jul 2017 11:31:42 -0400 |
parents | 56cc8a1f7082 |
children | 933670761a57 |
line wrap: on
line source
#! /usr/bin/env python import sys import matplotlib.pyplot as plt import numpy as np import cv2 import cvutils import utils if len(sys.argv) < 4: print('Usage: {} homography_filename original_size new_size (size can be width or height)'.format(sys.argv[0])) sys.exit() homography = np.loadtxt(sys.argv[1]) imgPoints = np.array([[10,10], [10,20], [20,20], [20,10]]) wldPoints = cvutils.homographyProject(imgPoints.T, homography).T newSize = float(sys.argv[3]) originalSize = float(sys.argv[2]) imgPoints = imgPoints*newSize/originalSize newHomography, mask = cv2.findHomography(imgPoints, wldPoints) np.savetxt(sys.argv[1]+'.new', newHomography)