title: How to convert distort perspecitve leads to "@ fatal/mogrify.c/MogrifyImage/1423"
body: <p>I have to distort some pictures in the perspective way with Imagemagick. One of the four given points in the pictures stay in the same position and the other 3 points should distort around the first point. </p>
  
  <p>In my last researches I only found a solution for the output <code>"convert: Memory allocation failed 'name.jpg'"</code>. So I changed the the memory value in my <code>policy.xml</code> to the value of my whole RAM. </p>
  
  <p>If I write</p>
  
  <pre><code>convert building.jpg -matte -virtual-pixel transparent \ 
  -distort Perspective \ 
  '4,126 4,126  7,39 4,39  85,0 100,39  86,127 100,126' \ 
  building_pers.png
  </code></pre>
  
  <p>in the console (given by my professor), I get the output in the heading. </p>
  
  <p>Now I don't know, what I should do. I hope you can help me.</p>
  
  <p>P.S.: I have some difficulties with English, so I hope you can forgive my possible mistakes. Please answer in a way easy to understand.</p>
  
  <p>Thank you very much.</p>