NAME
lqr_carver_bias_set_energy_function_builtin - set a builtin energy
function for a LqrCarver object
SYNOPSIS
#include <lqr.h>
LqrRetVal lqr_carver_set_energy_function_builtin(LqrCarver* carver,
LqrEnergyFuncBuiltinType ef_ind);
DESCRIPTION
The function lqr_carver_set_energy_function_builtin allows to pick a
builtin energy function for the LqrCarver object pointed to by carver.
The possible values for ef_ind are:
LQR_EF_GRAD_XABS
absolute value of the brightness gradient in the direction of the
rescaling (this is the default)
LQR_EF_GRAD_SUMABS
sum of absolute values of the brightness gradients in both
directions
LQR_EF_GRAD_NORM
norm of the brightness gradient
LQR_EF_LUMA_GRAD_XABS
absolute value of the luma gradient in the direction of the
rescaling
LQR_EF_LUMA_GRAD_SUMABS
sum of absolute values of the luma gradients in both directions
LQR_EF_LUMA_GRAD_NORM
norm of the luma gradient
LQR_EF_NULL
null
All of the above gradient functions have a radius of 1 pixel.
RETURN VALUE
The return value follows the Liquid Rescale library signalling system.
SEE ALSO
lqr_carver_set_energy_function(3), lqr_carver_get_energy(3)
COPYRIGHT
Copyright © 2007-2009 Carlo Baldassi