Function opencv::imgproc::corner_min_eigen_val

pub fn corner_min_eigen_val(
    src: &dyn ToInputArray, 
    dst: &mut dyn ToOutputArray, 
    block_size: i32, 
    ksize: i32, 
    border_type: i32
) -> Result<()>

Calculates the minimal eigenvalue of gradient matrices for corner detection.

The function is similar to cornerEigenValsAndVecs but it calculates and stores only the minimal eigenvalue of the covariance matrix of derivatives, that is, in terms of the formulae in the cornerEigenValsAndVecs description.

Parameters

• src: Input single-channel 8-bit or floating-point image.
• dst: Image to store the minimal eigenvalues. It has the type CV_32FC1 and the same size as src .
• blockSize: Neighborhood size (see the details on #cornerEigenValsAndVecs ).
• ksize: Aperture parameter for the Sobel operator.
• borderType: Pixel extrapolation method. See #BorderTypes.

C++ default parameters

• ksize: 3
• border_type: BORDER_DEFAULT