pub fn logmat(sigma: f64, min_ampl: f64) -> Result<VipsImage>Expand description
VipsLogmat (logmat), make a Laplacian of Gaussian image
sigma: f64 -> Radius of Gaussian
min: 0.000001, max: 10000, default: 1
min_ampl: f64 -> Minimum amplitude of Gaussian
min: 0.000001, max: 10000, default: 0.1
returns VipsImage - Output image