You can play a video from within Photoshop Elements and
grab frames to edit and save as images.
Select File > Import > Frame From Video.
Browse and select the video.
Click Play.
The video starts playing in the Frame From
Video dialog box. You can use the playback controls to display the
frames your want to grab. If you find the audio distracting, select
Mute.
Click Grab Frame.
Photoshop Elements places the grabbed
frames as images in new files., ready for editing.