Image dimension column in Finder? Is it possible to add a column in the list View in Finder, that displays the dimensions of image files ?
Just add the word Pictures (capital P) to the front of your folder name, and you will miraculously get Dimensions and Resolution as a column option.  Then just rename it back.

Note: You may need to right-click on the list view's header bar to see this option, rather than View > Show View Options (⌘ J).