OpenCV - Reading a 16 bit grayscale image


Question

I'm trying to read a 16 bit grayscale image using OpenCV 2.4 in Python, but it seems to be loading it as 8 bit.

I'm doing:

im = cv2.imread(path,0)
print im

[[25 25 28 ...,  0  0  0]
[ 0  0  0 ...,  0  0  0]
[ 0  0  0 ...,  0  0  0]
..., 

How do I get it as 16 bit?

1
15
6/10/2012 2:41:03 PM

Accepted Answer

Figured it out. In case anyone else runs into this problem:

im = cv2.imread(path,-1)

Setting the flag to 0, to load as grayscale seems to default to 8 bit. Setting to -1 loads the image "as is".

22
6/10/2012 4:50:19 PM

To improve readability use the flag cv2.IMREAD_ANYDEPTH

image = cv2.imread( path, cv2.IMREAD_ANYDEPTH )

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