title: crop / swap parts of image with magick mogrify
body: <p>I am trying to crop and swap different parts of a big 800x800 image and re-create 800x800 image using imagemagick with this command.</p>
  <p>magick mogrify titli.gif -crop 2x4@ +repage -reverse -append -path converted titli.gif</p>
  <p>my problem is &quot;-append&quot; creates tall image (400x1600) &amp; &quot;+append&quot; creates wide image (3200x200)</p>
  <p>How can I get a large image of original size 800x800 but with cropped and swapped (reversed) parts set in &quot;mosaic or tiled&quot; style...</p>