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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_g93f5fdi1h6dig1ggsg6unj4gc, 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 />
// scales second image to size of first
static BufferedImage addBufferedImagesPixelByPixel(BufferedImage img1, BufferedImage img2) {
  int w = img1.getWidth(), h = img1.getHeight();
  BufferedImage img = newImage(w, h);
  BufferedImage img2scaled = resizeImage(img2, w, h);
  for y to h:
    for x to w:
      setRGB(img, x, y, rgbAdd(bufferedImage_getRGB(img1, x, y),
        bufferedImage_getRGB(img2scaled, x, y));
  ret img;
}