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im_sign
Langue: en
Version: 157595 (fedora - 05/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
im_sign - find the unit vector in the direction of valueSYNOPSIS
#include <vips/vips.h>int im_sign( in, out )
IMAGE *in, *out;
DESCRIPTION
im_sign(3) finds the unit vector in the direction of the pixel value. For non-complex images, it returns a signed char image with values -1, 0, and 1 for negative, zero and positive pixels. For complex images it returns a complex normalised to length 1.RETURN VALUE
The function returns 0 on success and -1 on error.SEE ALSO
im_abs(3), im_cmulnorm(3), im_c2amph(3)Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre