Google is enabling developers to improve their custom search engines by enabling them to search for images via the Custom Search API. Image search was already available via the standard Google Custom Search Engines, but it is now available via the new API as well.
The API offers more flexibility than the custom search engine since developers can fully customize the look of the search engine and the results page on their sites. What's more, they can integrate image search into any sort of apps.
"For billing purposes, image queries will be treated the same as web queries. If you are still using the deprecated Google Image Search API, now’s a great time to switch," Google
explained.
You can find out more about image results in the Custom Search API
here and you can even
try it out via the Google API Explorer.