mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.3 KiB
44 lines
1.3 KiB
#!/usr/bin/python |
|
import sys |
|
import urllib2 |
|
import cv2.cv as cv |
|
|
|
src=None |
|
dst=None |
|
src2=None |
|
|
|
def on_mouse(event, x, y, flags, param): |
|
|
|
if not src: |
|
return |
|
|
|
if event==cv.CV_EVENT_LBUTTONDOWN: |
|
cv.LogPolar(src, dst, (x, y), 40, cv.CV_INTER_LINEAR + cv.CV_WARP_FILL_OUTLIERS) |
|
cv.LogPolar(dst, src2, (x, y), 40, cv.CV_INTER_LINEAR + cv.CV_WARP_FILL_OUTLIERS + cv.CV_WARP_INVERSE_MAP) |
|
cv.ShowImage("log-polar", dst) |
|
cv.ShowImage("inverse log-polar", src2) |
|
|
|
if __name__ == "__main__": |
|
|
|
if len(sys.argv) > 1: |
|
src = cv.LoadImage( sys.argv[1], cv.CV_LOAD_IMAGE_COLOR) |
|
else: |
|
url = 'http://code.opencv.org/svn/opencv/trunk/opencv/samples/c/fruits.jpg' |
|
filedata = urllib2.urlopen(url).read() |
|
imagefiledata = cv.CreateMatHeader(1, len(filedata), cv.CV_8UC1) |
|
cv.SetData(imagefiledata, filedata, len(filedata)) |
|
src = cv.DecodeImage(imagefiledata, cv.CV_LOAD_IMAGE_COLOR) |
|
|
|
cv.NamedWindow("original", 1) |
|
cv.NamedWindow("log-polar", 1) |
|
cv.NamedWindow("inverse log-polar", 1) |
|
|
|
|
|
dst = cv.CreateImage((256, 256), 8, 3) |
|
src2 = cv.CreateImage(cv.GetSize(src), 8, 3) |
|
|
|
cv.SetMouseCallback("original", on_mouse) |
|
on_mouse(cv.CV_EVENT_LBUTTONDOWN, src.width/2, src.height/2, None, None) |
|
|
|
cv.ShowImage("original", src) |
|
cv.WaitKey()
|
|
|