Brian Lo
Reputation: 71
Need help to explain a line of Opencv/Numpy code
Can someone please explain to me what would the following line do?
bgr = img[:,:,:3]
Upvotes: 0
Views: 60
Answers (1)
Brandt
Reputation: 5659
What you want to look for here is "slicing" and "indexing". Have a look on those links:
- https://numpy.org/doc/stable/reference/arrays.indexing.html
- https://www.w3schools.com/python/numpy/numpy_array_slicing.asp
Basically, img is a 3-dimensional array and you are selecting all elements of axis "0" and "1", but only the first 3 elements ([0,1,2])of axes "2".
Upvotes: 4
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