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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_go9qtte2c7trsi1l8qgdsv1rbi, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
static BWImage iBWIntegralImageToBWImage(IBWIntegralImage img) {
  int w = img.getWidth(), h = img.getHeight();
  BWImage out = new(w, h);
  for y to h:
    for x to w: {
      int pixel = iround(img.getPixelAverage(img, x, y, x+1, y+1));
      out.setByte(x, y, (byte) pixel);
    }
  ret out;
}