Open Source Computer Vision Library https://opencv.org/
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#!/usr/bin/python
import urllib2
import sys
import cv
class Sketcher:
def __init__(self, windowname, dests):
self.prev_pt = None
self.windowname = windowname
self.dests = dests
cv.SetMouseCallback(self.windowname, self.on_mouse)
def on_mouse(self, event, x, y, flags, param):
pt = (x, y)
if event == cv.CV_EVENT_LBUTTONUP or not (flags & cv.CV_EVENT_FLAG_LBUTTON):
self.prev_pt = None
elif event == cv.CV_EVENT_LBUTTONDOWN:
self.prev_pt = pt
elif event == cv.CV_EVENT_MOUSEMOVE and (flags & cv.CV_EVENT_FLAG_LBUTTON) :
if self.prev_pt:
for dst in self.dests:
cv.Line(dst, self.prev_pt, pt, cv.ScalarAll(255), 5, 8, 0)
self.prev_pt = pt
cv.ShowImage(self.windowname, img)
if __name__=="__main__":
if len(sys.argv) > 1:
img0 = cv.LoadImage( sys.argv[1], cv.CV_LOAD_IMAGE_COLOR)
else:
url = 'https://code.ros.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))
img0 = cv.DecodeImage(imagefiledata, cv.CV_LOAD_IMAGE_COLOR)
print "Hot keys:"
print "\tESC - quit the program"
print "\tr - restore the original image"
print "\ti or ENTER - run inpainting algorithm"
print "\t\t(before running it, paint something on the image)"
cv.NamedWindow("image", 1)
cv.NamedWindow("inpainted image", 1)
img = cv.CloneImage(img0)
inpainted = cv.CloneImage(img0)
inpaint_mask = cv.CreateImage(cv.GetSize(img), 8, 1)
cv.Zero(inpaint_mask)
cv.Zero(inpainted)
cv.ShowImage("image", img)
cv.ShowImage("inpainted image", inpainted)
sk = Sketcher("image", [img, inpaint_mask])
while True:
c = cv.WaitKey(0) % 0x100
if c == 27 or c == ord('q'):
break
if c == ord('r'):
cv.Zero(inpaint_mask)
cv.Copy(img0, img)
cv.ShowImage("image", img)
if c == ord('i') or c == ord('\n'):
cv.Inpaint(img, inpaint_mask, inpainted, 3, cv.CV_INPAINT_TELEA)
cv.ShowImage("inpainted image", inpainted)