You can save a copy of the picture that is paused in youtube video. For example you might want to capture funny cats dogs, favorite actors, etc., from YouTube video. You can momentary image using the following simple method.
Steps to Screen capture You Tube Video
1. Pause the video.
2. Press PtrSc (print screen) key from your keyboard.
3. Open your paint program or PhotoShop.
4. Paste it using [Control] + [v] and save it.
4. You can cut the required portion of image using paint or image manipulation program like GIMP.