Edit in JSFiddle

div {
    display: inline-block;
    filter: brightness(5);
    -webkit-filter: brightness(5);
}

div img {
    filter: blur(2px) contrast(2);
    -webkit-filter: blur(2px) contrast(2);
}

img {
    filter: blur(2px) contrast(2) brightness(5);
    -webkit-filter: blur(2px) contrast(2) brightness(5);
}