40 lines
772 B
Python
40 lines
772 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 cv2
|
|
|
|
if __name__ == '__main__':
|
|
print(__doc__)
|
|
|
|
import sys
|
|
try:
|
|
fn = sys.argv[1]
|
|
except IndexError:
|
|
fn = '../data/fruits.jpg'
|
|
|
|
img = cv2.imread(fn)
|
|
if img is None:
|
|
print('Failed to load image file:', fn)
|
|
sys.exit(1)
|
|
|
|
img2 = cv2.logPolar(img, (img.shape[0]/2, img.shape[1]/2), 40, cv2.WARP_FILL_OUTLIERS)
|
|
img3 = cv2.linearPolar(img, (img.shape[0]/2, img.shape[1]/2), 40, cv2.WARP_FILL_OUTLIERS)
|
|
|
|
cv2.imshow('before', img)
|
|
cv2.imshow('logpolar', img2)
|
|
cv2.imshow('linearpolar', img3)
|
|
|
|
cv2.waitKey(0)
|