<!-- manual page source format generated by PolyglotMan v3.2, --> <!-- available at http://polyglotman.sourceforge.net/ --> <html> <head> <title>IM_ANDIMAGE(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_andimage, im_andconst, im_and_vec, im_orimage, im_orconst, im_or_vec, im_eorimage, im_eorconst, im_eor_vec - boolean operations on unsigned char images <h2><a name='sect1' href='#toc1'>Synopsis</a></h2> <b>#include <vips/vips.h></b> <p> <b>int im_andimage(a, b, out)</b> <br> <b>IMAGE *a, *b, *out;</b> <p> <b>int im_andconst(a, out, c)</b> <br> <b>IMAGE *a, *out;</b> <br> <b>double c;</b> <p> <b>int im_and_vec(a, out, n, v)</b> <br> <b>IMAGE *a, *out;</b> <br> <b>int n;</b> <br> <b>double *v;</b> <p> <b>int im_orimage(a, b, out)</b> <br> <b>IMAGE *a, *b, *out;</b> <p> <b>int im_orconst(a, out, c)</b> <br> <b>IMAGE *a, *out;</b> <br> <b>double c;</b> <p> <b>int im_or_vec(a, out, n, v)</b> <br> <b>IMAGE *a, *out;</b> <br> <b>int n;</b> <br> <b>double *v;</b> <p> <b>int im_eorimage(a, b, out)</b> <br> <b>IMAGE *a, *b, *out;</b> <p> <b>int im_eorconst(a, out, c)</b> <br> <b>IMAGE *a, *out;</b> <br> <b>double c;</b> <p> <b>int im_eor_vec(a, out, n, v)</b> <br> <b>IMAGE *a, *out;</b> <br> <b>int n;</b> <br> <b>double *v;</b> <p> <h2><a name='sect2' href='#toc2'>Description</a></h2> Perform bitwise logical operations on integer images. <p> <a href='im_andimage.3.html'><b>im_andimage(3)</b></a> performs bitwise and between corresponding pixels in a and b, writing the result to out. Both images must be the same size and have the same number of bands. They can have any integer type. <p> <a href='im_andconst.3.html'><b>im_andconst(3)</a> </b> performs bitwise and between pixels in a and a single constant value. <a href='im_and_vec.3.html'><b>im_and_vec(3)</a> </b> lets you specify n constants, one per band. <p> <a href='im_orimage.3.html'><b>im_orimage(3)</a> </b> and <a href='im_eorimage.3.html'><b>im_eorimage(3)</a> </b> behave similarly. Use im_eorconst( in, out, -1 ) or <a href='im_invert.3.html'><b>im_invert(3)</a> </b> as a not operator. <p> <h2><a name='sect3' href='#toc3'>Return Value</a></h2> All functions return 0 on success and -1 on error. <h2><a name='sect4' href='#toc4'>See Also</a></h2> <a href='im_ifthenelse.3.html'>im_ifthenelse(3)</a> , <a href='im_equal.3.html'>im_equal(3)</a> . <h2><a name='sect5' href='#toc5'>Copyright</a></h2> National Gallery, 1992 <h2><a name='sect6' href='#toc6'>Author</a></h2> J. Cupitt <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> <li><a name='toc5' href='#sect5'>Copyright</a></li> <li><a name='toc6' href='#sect6'>Author</a></li> </ul> </body> </html>