Applies Deriche filter to an image

dst = cv.GradientDeriche(op, dir)
dst = cv.GradientDeriche(op, dir, 'OptionName',optionValue, ...)

Input

• op Source 8-bit or 16-bit image, 1-channel or 3-channel image.
• dir Filter direction. One of:
  • X
  • Y

Output

• dst result single image with same number of channel than op.

Options

• AlphaDerive double see paper. default 1.0
• AlphaMean double see paper. default 1.0

For more details about this implementation, please see [deriche1987].

References

[deriche1987]:

Rachid Deriche. "Using Canny's criteria to derive a recursively implemented optimal edge detector". International Journal of Computer Vision, Volume 1 Issue 2, pages 167-187, 1987. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.476.5736&rep=rep1&type=pdf