You can make a bookmark with this as the url:
javascript:
var cached_anchors = $$('a');
for (var i in cached_anchors) {
var ca = cached_anchors[i];
if(ca.href.search('sprite') < 0 && ca.href.search('.png') > -1 || ca.href.search('.gif') > -1 || ca.href.search('.jpg') > -1) {
var a = document.createElement('a');
a.href = ca.innerHTML;
a.target = '_blank';
var img = document.createElement('img');
img.src = ca.innerHTML;
img.style.maxHeight = '100px';
a.appendChild(img);
document.getElementsByTagName('body')[0].appendChild(a);
}
}
document.getElementsByTagName('body')[0].removeChild(document.getElementsByTagName('table')[0]);
void(0);
Then just go to chrome://cache and then click your bookmark and it'll show you all the images.