Function spatial_gradient_def

pub fn spatial_gradient_def(
    src: &impl ToInputArray,
    dx: &mut impl ToOutputArray,
    dy: &mut impl ToOutputArray,
) -> Result<()>

Calculates the first order image derivative in both x and y using a Sobel operator

Equivalent to calling:

Sobel( src, dx, CV_16SC1, 1, 0, 3 );
Sobel( src, dy, CV_16SC1, 0, 1, 3 );

Parameters

• src: input image.
• dx: output image with first-order derivative in x.
• dy: output image with first-order derivative in y.
• ksize: size of Sobel kernel. It must be 3.
• borderType: pixel extrapolation method, see #BorderTypes. Only #BORDER_DEFAULT=[BORDER_REFLECT_101] and [BORDER_REPLICATE] are supported.

See also

Sobel

Note

This alternative version of spatial_gradient function uses the following default values for its arguments:

• ksize: 3
• border_type: BORDER_DEFAULT