title: Quality option with -write in ImageMagick
body: <p>I am using the CLI of imagemagick to export cropped images of a unique picture:</p>
  <pre><code>convert -quiet a.jpg -write mpr:uniquePicture \( mpr:uniquePicture -crop 10x10+5+5 +repage -write b.jpg +delete \) null:
  </code></pre>
  <p>In my script there are a lot of &quot;\( \)&quot; with different crop parameters.</p>
  <p>This works perfectly but I would like to control the quality of the exported picture (&quot;b.jpg&quot; in my example). If I had &quot;-quality 90&quot; inside the &quot;\( \)&quot; there is an error…</p>
  <p>So, is there a way to use the jpg quality inside the &quot;\( \)&quot;?</p>
  <p>Thierry</p>