How to transfer photos on to your iPhone from your computer?

I want to put pictures back on my iPhone from my Samsung windows 8 photo library.

Use data cable for faster transfer media

ITunes you have an option to sync photo from different albums

The article introduces a way how to transfer photos from computer to iphone, you can follow it to do, hope it can help you.
http://www.pcadvisor.co.uk/how-to/apple/3444903/transfer-photos-from-computer-iphone-ipad/

You can use iTunes to sync the photos from computer to your iPhone. Or you can use a 3rd party software like this iPhone file manager. It can help you upload photos, videos, songs and apps to iPhone easily.