Mindmine #7

In the grid below, the number in each cell represents the number of neighboring cells which are shaded, including the diagonals but not including the cell itself: $\large{\begin{array}{|c|c|c|c|} \hline 2 & 3 & 1 & 1 \\\hline 2 & 4 & 3 & 2 \\\hline 3 & 4 & 3 & 1 \\\hline 1 & 2 & 2 & 2 \\\hline \end{array}}$ How many of the cells are shaded?