第一次发帖!
我刚刚安装了 python-opencv。根据 python,我的版本是:
>>> import cv2
>>> cv2.__version__ '2.4.8'
我的 Ubuntu 版本是 14.04。
然后我开始了一个 python-opencv 教程,它建议了这段代码:
img = cv2.imread('OpenCV_Chessboard.png')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
# find Harris corners
gray = np.float32(gray)
dst = cv2.cornerHarris(gray, 2, 3, 0.04)
dst = cv2.dilate(dst,None)
ret, dst = cv2.threshold(dst,0.01*dst.max(),255,0)
dst = np.uint8(dst)
# find centroids
ret, labels, stats, centroids = cv2.connectedComponentsWithStats(dst)
# define the criteria to stop and refine the corners
criteria = (cv2.TERM_CRITERIA_EPS + cv2.TERM_CRITERIA_MAX_ITER, 100, 0.001)
corners = cv2.cornerSubPix(gray,np.float32(centroids),(5,5),(-1,-1),criteria)
# Now draw them
res = np.hstack((centroids,corners))
res = np.int0(res)
img[res[:,1],res[:,0]]=[0,0,255]
img[res[:,3],res[:,2]] = [0,255,0]
cv2.imwrite('subpixel5.png',img)
当尝试执行未更改的代码时,我得到了这个:
File "pyopencv_test.py", line 21, in <module>
ret, labels, stats, centroids = cv2.connectedComponentsWithStats(dst)
AttributeError: 'module' object has no attribute 'connectedComponentsWithStats'
快速搜索表明我需要 python-opencv 3 而不是我当前的版本 2.4.8。我不知道如何将opencv版本更新为opencv 3,以便python自动访问它。有什么帮助吗?非常感谢逐步说明!
最佳答案
'connectedComponentsWithStats' 方法只能在 opencv3.x 上使用。
关于python - opencv connectedComponentsWithStats,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31172977/