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LQR_CARVER_SET_ENERGY_FUNCT(3) LqR library API reference LQR_CARVER_SET_ENERGY_FUNCT(3)

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
 
10 Maj 2009 LqR library 0.4.1 API (3:1:3)