The great giant search engine GOOGLE recognize the text which is in image we upload them on Google plus if we are searching for the image as “baby” and we can notice the image with an HASH-TAG in that image baby images similar to that keyword is made display in the search
In the image caption appears only when we double click on the image in the search results. The name doesn’t appear anywhere when you click on the image elsewhere on Google plus profile .
ALSO SEE : GOOGLE’S HANDWRITING TRANSLATION TOOL
The Google will automatically TAG the hash-tag in your post in Google plus to get the related image based on the search .
When I posted this in Google plus profile the hash tag of # golden Gate Bridge is automatically in made in my post . So the Google feels that I’m interested in searching the topic in Golden Gate Bridge . It made stored in Google log when i search for Golden Gate Bridge it shows the higher precision in search and shows the better result.