Mouse getirince resmi yaklaştırmak.

img.active {
transform: scale(1.2);
}

img.deactive {
filter: blur(12px);
}

document.querySelectorAll('img').forEach(item => {
     item.addEventListener('click', e => {
          document.querySelectorAll('img').forEach(item2 => {
              item2.classList.remove('active');
             item2.classList.add('deactive');
        });
        e.currentTarget.classList.add('active');
        e.currentTarget.classList.remove('deactive');
        });
});