<p>No it is on memory option. Used only for identification. Antialias remove antialias for colour counting for instance </p>
<p>Crop identify only a part or a plane of the image</p>
<p>Other option are needed for some kind of weird format (astronautic) that have infrared or gamma ray channel </p>
<p>Man page need clarification but it is read only</p>
<p>Bastien <br><br></p>
<p><blockquote type="cite">Le 7 août 2011 09:09, <<a href="mailto:jidanni@jidanni.org">jidanni@jidanni.org</a>> a écrit :<br><br>Package: imagemagick<br>
Version: 8:6.6.9.7-5<br>
Severity: wishlist<br>
File: /usr/share/man/man1/identify.1.gz<br>
<br>
 NAME<br>
     identify  -  describes  the  format  and characteristics...<br>
<br>
OK, we see it is a read only command.<br>
<br>
 DESCRIPTION<br>
Don't you mean OPTIONS?<br>
<br>
And these sound like write only options, not read only.<br>
<br>
   Image Settings:<br>
    -antialias      remove pixel-aliasing<br>
    -authenticate value  decrypt image with this password<br>
    -channel type     apply option to select image channels<br>
    -crop geometry    cut out a rectangular region of the image...<br>
<br>
<br>
<br>
</blockquote></p>