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#!/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()
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