<!DOCTYPE html> <html lang="en"> <head> <title>The CImg Library - C++ Template Image Processing Toolkit - Reference Documentation</title> <meta charset="utf-8"> <meta name="author" content="David Tschumperlé"> <meta name="description" content="A full-featured open-source framework for processing generic image (2D,3D,3D+t) with multiple interfaces: command-line (cli), gimp plug-in, web service, Qt plug-in, C++ library"> <meta name="keywords" content="open-source, image processing, command-line tool, GIMP plug-in, Krita plug-in, Paint.NET plug-in, C++ library, ZArt"> <link rel="shortcut icon" type="image/x-icon" href="../favicon.ico"> <link rel="icon" type="image/png" href="../favicon.png"> <link rel="stylesheet" href="doxygen.css" type="text/css"> <link rel="stylesheet" href="tabs.css" type="text/css"> <link rel="stylesheet" href="../style.css"> <script src="jquery.js"></script> <script src="dynsections.js"></script> <style> .PageDoc .header { width: 100%; } .textblock h2, .textblock h1 { color: black; font-weight: bold; font-size: larger; text-align: left; } .header { width: 100%; } div.fragment { padding: 1em; } </style> </head> <body> <!-- Logo and caption --> <div class="header"> <a href="../index.html"><img alt="Logo" src="../img/logo_header.jpg" class="center_image" style="margin-top:1em;"/></a> <h2 style="padding-bottom: 1em"> Latest stable version: <b><a href="http://cimg.eu/files/CImg_3.2.5.zip">3.2.5</a></b> </h2> <hr/> <!-- Menu bar --> <div id='cssmenu'> <ul> <li><a href='../index.html'><span> <img alt="Home" src='../img/menu_home.png' /> Home</span></a></li> <li><a href='../download.html'><span> <img alt="Download" src='../img/menu_download.png' /> Download</span></a></li> <li><a href='../screenshots.html'><span> <img alt="Screenshots" src='../img/menu_screenshots.png' /> Screenshots</span></a></li> <!-- <li><a href='../reference/faq.html'><span> --> <!-- <img alt="FAQ" src='../img/menu_faq.png' /> --> <!-- FAQ</span></a></li> --> <li><a href='../reference/tutorial.html'><span> <img alt="Tutorial" src='../img/menu_tutorial.png' /> Tutorial</span></a> <li><a href='../reference/'><span> <img alt="Documentation" src='../img/menu_reference.png' /> Documentation</span></a></li> <li><a href='https://github.com/GreycLab/CImg/issues'><span> <img alt="Report Issue" src='../img/menu_issue.png' /> Report Issue</span></a> <li><a href='../links.html'><span> <img alt="Links" src='../img/menu_links.png' /> Links</span></a></li> <li><a target="_blank" href='https://www.taylorfrancis.com/books/mono/10.1201/9781003323693/digital-image-processing-vincent-barra-christophe-tilmant-david-tschumperle'><span style="background-color:khaki"> <img alt="Book" src='img/menu_tutorial.png' /> <span style="color: forestgreen">Book</span></span></a></li> </ul> </div> <hr/> <div style="min-height:1em"></div> <div class="section_title"><p>Reference</p></div><div class="section_content"><div>