scharr-v

scharr_v

skimage.filters.scharr_v(image, mask=None) [source]

Find the vertical edges of an image using the Scharr transform.

Parameters:	image : 2-D array Image to process mask : 2-D array, optional An optional mask to limit the application to a certain area. Note that pixels surrounding masked regions are also masked to prevent masked regions from affecting the result.
Returns:	output : 2-D array The Scharr edge map.

Notes

We use the following kernel:

1 2 3

3   0   -3 10   0  -10  3   0   -3

References

[R196]

D. Kroon, 2009, Short Paper University Twente, Numerical Optimization of Kernel Based Image Derivatives.