Why can i not delete photo's from my smartphone android Galaxy S4

[AC Question]

the same photo is repeated several times in Picasa and should have to be deleted

 

[B. Diddy]

Welcome to Android Central! Picasa represents photos that are saved to your Google Photos cloud. Go to photos.google.com on your computer browser and see if the photos are there. If you see them and don't want them, then delete them there.