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#!/usr/bin/python
import urllib2
import cv
import sys
if __name__ == "__main__":
laplace = None
colorlaplace = None
planes = [ None, None, None ]
capture = None
if len(sys.argv) == 1:
capture = cv.CreateCameraCapture(0)
elif len(sys.argv) == 2 and sys.argv[1].isdigit():
capture = cv.CreateCameraCapture(int(sys.argv[1]))
elif len(sys.argv) == 2:
capture = cv.CreateFileCapture(sys.argv[1])
if not capture:
print "Could not initialize capturing..."
sys.exit(-1)
cv.NamedWindow("Laplacian", 1)
while True:
frame = cv.QueryFrame(capture)
if frame:
if not laplace:
planes = [cv.CreateImage((frame.width, frame.height), 8, 1) for i in range(3)]
laplace = cv.CreateImage((frame.width, frame.height), cv.IPL_DEPTH_16S, 1)
colorlaplace = cv.CreateImage((frame.width, frame.height), 8, 3)
cv.Split(frame, planes[0], planes[1], planes[2], None)
for plane in planes:
cv.Laplace(plane, laplace, 3)
cv.ConvertScaleAbs(laplace, plane, 1, 0)
cv.Merge(planes[0], planes[1], planes[2], None, colorlaplace)
cv.ShowImage("Laplacian", colorlaplace)
if cv.WaitKey(10) != -1:
break
cv.DestroyWindow("Laplacian")
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