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.
It would appear that the answer is no, not directly.
Options for columns include:
and image size is not one of the choices.
You could, however, use a Folder Action to assign image size to the Comments field of a file in a folder and display the Comments column.
Note that in icon view, you can press ⌘J and check "show item info" to display image sizes.