One way to transfer photos from an android Smartphone to an apple iPod is through Bluetooth. However, you can connect your android phone to the computer via the USB cable and save the picture on the computer. You will then connect the iPod to the computer via the USB cable and then transfer the pictures.
Download them to your computer and then from the computer to the iPod using iTunes. You can also install an app called "Google Drive" on your phone and also on your iPod, upload your pictures to your Google Drive cloud and then download them in your iPod from the Google Drive cloud.