Expand description
Functions for computing gradients of image intensities.
Statics
Prewitt filter for detecting horizontal gradients.
Sobel filter for detecting horizontal gradients.
Prewitt filter for detecting vertical gradients.
Sobel filter for detecting vertical gradients.
Functions
Convolves an image with the
HORIZONTAL_PREWITT
kernel to detect horizontal gradients.Convolves an image with the
HORIZONTAL_SOBEL
kernel to detect horizontal gradients.Returns the magnitudes of gradients in an image using Prewitt filters.
Computes per-channel gradients using Sobel filters and calls
f
to compute each output pixel.Returns the magnitudes of gradients in an image using Sobel filters.
Convolves an image with the
VERTICAL_PREWITT
kernel to detect vertical gradients.Convolves an image with the
VERTICAL_SOBEL
kernel to detect vertical gradients.