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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 />
// doesn't clean the coordinates
static ii_clip(IntegralImage ii, int x1, int y1, int w, int h) {
  if (img == null) null;
  BufferedImage out = newBufferedImage(w, h);
  for y to h:
    for x to w:
      out.setRGB(x, y, ii_getPixel(img, x1+x, y1+y));
  ret out;
}

static ii_clip(IntegralImage ii, DoubleRect r) {
  ret ii_clip(ii, toRect(r));
}

static ii_clip(IntegralImage ii, Rect r) {
  ret r == null ? null : ii_clip(ii, r.x, r.y, r.w, r.h);
}