<!-- manual page source format generated by PolyglotMan v3.2, --> <!-- available at http://polyglotman.sourceforge.net/ --> <html> <head> <title>IM_GREY(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_grey, im_fgrey, im_make_xy - creates a grey scale <h2><a name='sect1' href='#toc1'>Synopsis</a></h2> <b>#include <vips/vips.h></b> <p> <b>int im_grey( image, xsize, ysize )</b> <br> <b>IMAGE *image;</b> <br> <b>int xsize, ysize;</b> <p> <b>int im_fgrey( image, xsize, ysize )</b> <br> <b>IMAGE *image;</b> <br> <b>int xsize, ysize;</b> <p> <b>int im_make_xy( image, xsize, ysize )</b> <br> <b>IMAGE *image;</b> <br> <b>int xsize, ysize;</b> <p> <h2><a name='sect2' href='#toc2'>Description</a></h2> <a href='im_grey.3.html'><b>im_grey(3)</a> </b> creates a one-band FMTUCHAR grey scale image of sizes xsize by ysize. The intensity varies from 0 (left) to 255 (right). <p> <a href='im_fgrey.3.html'><b>im_fgrey(3)</a> </b> works as <a href='im_grey.3.html'><b>im_grey(3)</a> , </b> except that the output image is FMTFLOAT, allowing pixel values from 0 (left) to 1.0 (right). <p> <a href='im_make_xy.3.html'><b>im_make_xy(3)</a> </b> makes a two-band FMTUINT image where each pixel in band 0 has a value equal to the x coordinate, and each pixel in band 1 has a value equal to the y coordinate. <p> <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_black.3.html'>im_black(3)</a> <h2><a name='sect5' href='#toc5'>Copyright</a></h2> Birkbeck College and the National Gallery, 1995 <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> </ul> </body> </html>
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