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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 objectSYNOPSIS¶
#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_XABSabsolute 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¶
COPYRIGHT¶
Copyright © 2007-2009 Carlo Baldassi10 Maj 2009 | LqR library 0.4.1 API (3:1:3) |