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  <h3>Recreate image scales. </h3>

  <p>Archetypes creates the scales of an image when the image data is uploaded.
  If you have installed PIL later or if you have added/removed some scales you
  have to create resp. recreate the scales. Please note that you shouldn't
  remove a scale from the field definition. If you want to have a scale
  removed set its value to <code>(0, 0)</code>.
  </p>
  
  <p>This function recreates the scales of the <code>'image'</code> field of 
  all portal types listed in <code>image_types</code> in the property tab.
  Neither other portal types nor other fields are affected. The recreation
  process is using a catalog query so make sure your catalog is up to date.
  </p>
  
  <p><em>This may take a very long time!</em></p>
 
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   <h3>Recreating image scales. </h3>

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