You have accidentally deleted photos but there is no way to recover them. Do not worry, Photo Recovery is diskdigger gives you free scanning capabilities, you can view photos and restore them for free.
You can download the .apk installer of Photo Recovery 3.1.5 free of charge and check out users' reviews on Droid Informer. The file size doesn't exceed 6 MB and the app can be launched flawlessly on Android 4.1 and above. The antivirus report shows that this application is totally safe for usage. HD-Team is the creator of Photo Recovery that refers to the Tools category.
The most recent update of the app was released on Nov 14, 2020 and this application was downloaded by over 1M users. Users rated Photo Recovery 4 on Google Play. Some in-app purchases and advertisements are included into the app.