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cvGetDerivKernels


Module: OpenCV

Returns filter coefficients for computing spatial image derivatives.

Name Type Range Description
inDX Integer 0 - Derivative order in respect of x.
inDY Integer 0 - Derivative order in respect of y.
inKSize Integer -1 - 5 Aperture size. It can be CV_SCHARR , 1, 3, 5, or 7.
inNormalize Bool Flag indicating whether to normalize [scale down] the filter coefficients or not.
outKX Matrix Output matrix of row filter coefficients.
outKY Matrix Output matrix of column filter coefficients.

Errors

This filter can throw an exception to report error. Read how to deal with errors in Error Handling.

List of possible exceptions:

Error type Description
DomainError inKSize parameter must be CV_SCHARR(-1), 1, 3, 5 or 7 in cvGetDerivKernels.
DomainError Sum of inDX and inDY must be greater than 0 in cvGetDerivKernels.

Complexity Level

This filter is available on Basic Complexity Level.