import cv2.cv as cv
cv.NamedWindow("camera", 1)
capture = cv.CaptureFromCAM(0)
while True:
img = cv.QueryFrame(capture)
im_gray = cv.CreateImage(cv.GetSize(img),cv.IPL_DEPTH_8U,1)
cv.CvtColor(img,im_gray,cv.CV_RGB2GRAY)
# Sobel operator
dstSobel = cv.CreateMat(im_gray.height, im_gray.width, cv.CV_32FC1)
# Sobel(src, dst, xorder, yorder, apertureSize = 3)
cv.Sobel(im_gray,dstSobel,1,1,3)
cv.ShowImage('camera', dstSobel)
# image smoothing and subtraction
# imageBlur = cv.CreateImage(cv.GetSize(im_gray), im_gray.depth, im_gray.nChannels)
# # filering the original image
# # Smooth(src, dst, smoothtype=CV_GAUSSIAN, param1=3, param2=0, param3=0, param4=0)
# cv.Smooth(im_gray, imageBlur, cv.CV_BLUR, 11, 11)
# diff = cv.CreateImage(cv.GetSize(im_gray), im_gray.depth, im_gray.nChannels)
# # subtraction (original - filtered)
# cv.AbsDiff(im_gray,imageBlur,diff)
# cv.ShowImage('camera', diff)
if cv.WaitKey(10) == 27:
break
cv.DestroyWindow("camera")
Diff to Previous Revision
--- revision 1 2012-03-22 07:19:48
+++ revision 2 2012-03-22 07:21:35
@@ -5,11 +5,11 @@
while True:
img = cv.QueryFrame(capture)
- # Sobel operator
im_gray = cv.CreateImage(cv.GetSize(img),cv.IPL_DEPTH_8U,1)
cv.CvtColor(img,im_gray,cv.CV_RGB2GRAY)
+ # Sobel operator
dstSobel = cv.CreateMat(im_gray.height, im_gray.width, cv.CV_32FC1)
# Sobel(src, dst, xorder, yorder, apertureSize = 3)
cv.Sobel(im_gray,dstSobel,1,1,3)
