Interface Description

fft_upsampling

Upsampling operator, which scales up an image through interpolation.

gaussian_blur

Space-domain Gaussian filtering operator, which convolves an image through separable filtering with the specified Gaussian kernel.

gaussian_blur_fft

Frequency-domain Gaussian filtering operator, which converts an image to the frequency domain for Gaussian filtering.

laplacian

Laplacian operator, which calculates the second-order differential of an image.

local_min/local_max

Maximum/Minimum value operator, which traverses pixels to calculate the maximum or minimum value in the sliding window.

slope

Gradient operator, which calculates the first-order differential of an image.