sharpness setting

I know I'm new here and though I've seen decent chunk of dash cam footage over the years, most of you have seen more than me. I've also done a fair amount of DIY DVR for terrestrial broadcast TV, such that I've spit out quite a bit of footage through fairly tuned x264 encoding parameters. I'm...

On an SJ4000 Wi-Fi there are menu settings for Quality and Sharpness, but what do these terms really mean? Do they apply to recording videos and taking photos? What does the image processor do when these settings are changed? In the world of full-featured digital cameras or camcorders would...