mirror of
https://github.com/opencv/opencv.git
synced 2024-12-05 09:49:12 +08:00
46 lines
870 B
Python
46 lines
870 B
Python
#!/usr/bin/env python
|
|
|
|
'''
|
|
plots image as logPolar and linearPolar
|
|
|
|
Usage:
|
|
logpolar.py
|
|
|
|
Keys:
|
|
ESC - exit
|
|
'''
|
|
|
|
# Python 2/3 compatibility
|
|
from __future__ import print_function
|
|
|
|
import numpy as np
|
|
import cv2 as cv
|
|
|
|
def main():
|
|
import sys
|
|
try:
|
|
fn = sys.argv[1]
|
|
except IndexError:
|
|
fn = 'fruits.jpg'
|
|
|
|
img = cv.imread(cv.samples.findFile(fn))
|
|
if img is None:
|
|
print('Failed to load image file:', fn)
|
|
sys.exit(1)
|
|
|
|
img2 = cv.logPolar(img, (img.shape[0]/2, img.shape[1]/2), 40, cv.WARP_FILL_OUTLIERS)
|
|
img3 = cv.linearPolar(img, (img.shape[0]/2, img.shape[1]/2), 40, cv.WARP_FILL_OUTLIERS)
|
|
|
|
cv.imshow('before', img)
|
|
cv.imshow('logpolar', img2)
|
|
cv.imshow('linearpolar', img3)
|
|
|
|
cv.waitKey(0)
|
|
print('Done')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
print(__doc__)
|
|
main()
|
|
cv.destroyAllWindows()
|