I connect the phone via USB to the PC,
open the photo folder,
copy the file to the a folder on the PC
(BTW the 5MB of S4 pictures is too big and slow so I could scale them back using Gimp at this stage.)
click on the camera icon
Browse to where I saved the file, and upload.
Then google images shows me images which look similar.
BUT the camera icon is not present in the S4 Image search app.