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im_gammacorrect
Langue: en
Version: 173018 (fedora - 06/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
im_gammacorrect - carry out gamma correctionSYNOPSIS
#include <vips/vips.h>int im_gammacorrect(in, out, exponent)
IMAGE *in, *out;
double exponent;
DESCRIPTION
im_gammacorrect performs gamma correction to in. The result in written in out. The correction is carried out by creating a lookup table using the double exponent and mapping in through it. The exponent is applied on a ramp lut and the resultant lut is scaled. All channels of im are mapped through the lookup table.SEE ALSO
im_histgr(3), im_heq(3), im_histeq(3), im_identity(3), im_maplut(3)COPYRIGHT
N. DessiprisAUTHOR
N. Dessipris - 10/05/1991Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre