SYNOPSIS
#include <lqr.h>
- LqrRetVal lqr_carver_set_energy_function_builtin(LqrCarver* carver, LqrEnergyFuncBuiltinType ef_ind);
DESCRIPTION
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.
COPYRIGHT
Copyright © 2007-2009 Carlo Baldassi