Yahoo has added some very useful filters to their Image Search engine. For instance, you can specify dimensions (height x width) in the search query and it will display only pictures / icons that exactly match your specified size.

This means you can also use Yahoo! Images as an Icon Search Engine since icons are either 16×16 or 32×32 in size and this limit can be set at the time of search.
Then there’s a new "Recent Images" feature where you’ll find news related pictures that are fresh and have included only recently (like 2 hours ago).
And for people who hate to see so many pictures from Flickr included in Yahoo’s index, there’s a new option to let you restrict photo search to only-Flickr or absolutely-no-Flickr.
The only missing option is search by file type but you can have that indirectly using this alternate image search powered by Google AJAX API.
Find this article at: http://www.labnol.org/internet/search/search-custom-size-pictures-with-yahoo-images/5224/
web: http://www.labnol.org/ email: amit@labnol.org


Reader Comments
Maybe parts of this are new, but you were already able to search for e.g. large images, or just black and white imagery and so on starting back in 2005 link
Written by Philipp Lenssen on 11.05.08
Right. The new feature is that you may search image by specifying a size which I am not sure is possible in other image search engines from Google or Windows Live.
Written by Amit on 11.05.08