At the Google I/O meet on the 1st day Google revealed one another awesome feature that saves your time by choosing the best images for you through your hundreds of uploaded pics.
This has been explained as all the pics are not always the best so one will always upload all the pics to G+ and it itself filters out the best pics onto the screen that makes the best fit and also saves your time.The accuracy has been explained on the following basis . like G+ will discard the Blurry, duplicate and irrelevant pictures on the other hand it will always add quality by making the best choice by recognizing your close in circle friends or by taking a note at at he smile of the person.
We will be getting on to the new G+ updates in the next post ! Checkout: 41 New features for Google+.
Read more on Google I/O 2013