If you want your images from your Joomla /images folder to come up in the Google Image search what you should do?
It always depend on robot.txt file in Joomla root folder. In the file we have the followin settings as default.
By this we are disallowing /administrator and other folders to be hidden from Google or other serach engines...but why the /images folder.
If you want to show the images of your sites in Google just delete the line from robot.txt file.