<!-- manual page source format generated by PolyglotMan v3.2, --> <!-- available at http://polyglotman.sourceforge.net/ --> <html> <head> <title>IM_SIGN(3) manual page</title> </head> <body bgcolor='white'> <a href='#toc'>Table of Contents</a><p> <h2><a name='sect0' href='#toc0'>Name</a></h2> im_sign - find the unit vector in the direction of value <h2><a name='sect1' href='#toc1'>Synopsis</a></h2> #include <vips/vips.h> <p> int im_sign( in, out ) <br> IMAGE *in, *out; <h2><a name='sect2' href='#toc2'>Description</a></h2> <a href='im_sign.3.html'><b>im_sign(3)</b></a> 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. <h2><a name='sect3' href='#toc3'>Return Value</a></h2> The function returns 0 on success and -1 on error. <h2><a name='sect4' href='#toc4'>See Also</a></h2> <a href='im_abs.3.html'>im_abs(3)</a> , <a href='im_cmulnorm.3.html'>im_cmulnorm(3)</a> , <a href='im_c2amph.3.html'>im_c2amph(3)</a> <p> <hr><p> <a name='toc'><b>Table of Contents</b></a><p> <ul> <li><a name='toc0' href='#sect0'>Name</a></li> <li><a name='toc1' href='#sect1'>Synopsis</a></li> <li><a name='toc2' href='#sect2'>Description</a></li> <li><a name='toc3' href='#sect3'>Return Value</a></li> <li><a name='toc4' href='#sect4'>See Also</a></li> </ul> </body> </html>
distrib
>
Mandriva
>
2010.0
>
i586
>
media
>
contrib-release
>
by-pkgid
>
c109337651527e96d7bb9adc83c5b18a
>
files
>
524
