Rendering an image programmatically using EPSAcrop-enabled image style uses incorrect coordinates.

I'm trying to render an image through a theme preprocess function and am finding that I can't seem to render the file through an image style with EPSAcrop correctly. Rather, this code below seems to crop the image to the dimensions specified in the EPSAcrop dimensions for the 'program_view' image style, but it doesn't crop from the coordinates specified on the field. It seems to be cropping directly from the center of the image, and I'm wondering if I somehow need to pass coordinates from the field to the theme('image_style'...) function.

function theme_preprocess_node(&$vars) {
  $image = isset($vars['field_image']) ? $vars['field_image'][$lang][0]: array();

  /*
   * Preparing teaser image markup
   */
  if(!empty($image)) {
    $imagestyle = 'program_view';
    $filename = $image['filename'];
    $src_uri = file_build_uri($filename);
    $dest_uri = image_style_path($imagestyle, $src_uri);

    $style = image_style_load($imagestyle);

    if (!file_exists($dest_uri)) {
      image_style_create_derivative($style, $image['uri'], $dest_uri);
    }

    $vars['image'] = theme(
      'image_style',
      array(
        'path' => $dest_uri,
        'style_name' => $imagestyle
      )
    );
  }
}

Any thoughts on how to do this successfully?