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
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- SEE ALSO
-
- COPYRIGHT
-
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Time: 21:49:43 GMT, April 16, 2011