You take a picture in the game and go to your gallery. Go to the sub-menu and export to XMB. Take a USB and copy it from the XMB to your USB. Then copy it from your USB to your computer.My Diablo Gt. Sorry for the iPhone pic, I don't know how to upload pics from the game.
Rainmasters Nurburgring with a stock LP400 Countach:
When your looking at them in your photo gallery in game, just press export, then exit the game and go to your system's photos, select copy for the GranTurismo6 folder (or any picture in it) and copy to your USBView attachment 121702
My Diablo Gt. Sorry for the iPhone pic, I don't know how to upload pics from the game.