1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 2 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3 <html xmlns="http://www.w3.org/1999/xhtml"> 4 <head> 5 <meta content="HTML Tidy for Linux/x86 (vers 1st March 2003), see www.w3.org" 6 name="generator" /> 7 <title>Channel Option</title> 8 <link rel="StyleSheet" href="style/magick.css" type="text/css" /> 9 </head> 10 <body bgcolor="#FFFFFF" text="#000000" link="#0085C0" 11 vlink="#800080" alink="#0085C0"> 12 <center><img src="images/magick.png" align="bottom" width="114" 13 height="113" /></center> 14 <hr /> 15 <p>Use this option to extract a particular <em>channel</em> from 16 the image. <b>Matte</b>, for example, is useful for extracting the 17 opacity values from an image. The default channel is <b>All</b>-- 18 copy all channel to the output image.</p> 19 <hr /> 20 <p> 21 <a href="scripts/MagickStudio.cgi/?Action=mogrify&ToolType=Comment&SessionID=null&Path=null" 22 target="Comment"><img alt="[comment]" src="images/mail.png" 23 border="0" /></a></p> 24 </body> 25 </html>