MarkBarbieri
Semi-retired
- Joined
- Aug 20, 2006
The quality of video from video cameras, action cameras, and even cellphones keeps getting better and better. Most now shoot 4K video and some even shoot 8K. In comparison to megapixels, a standard HD camera creates a 2 megapixel image. With 4K, that goes up to 8 megapixels. That's plenty for most pictures.
Because of something called chroma subsampling, it isn't quite as good as that. Video cameras record brightness and color separately. In a typical image, they record the brightness for every pixel, but they only record one color for every group of four pixels. That isn't very noticeable in video, but it can be more noticeable in still images.
But not matter how much better still pictures can be than video images, there are times when you only have video and you want to create a still picture from it. I thought this might be a good place to share still images that you've taken from videos that you've shot.
I'll start first with a picture of my son hang gliding. The guide used a GoPro to record video of the flight. This was about 10 years ago, so it was only an HD GoPro. But I still love the picture I got from it.
Here I am on another flight.
Because of something called chroma subsampling, it isn't quite as good as that. Video cameras record brightness and color separately. In a typical image, they record the brightness for every pixel, but they only record one color for every group of four pixels. That isn't very noticeable in video, but it can be more noticeable in still images.
But not matter how much better still pictures can be than video images, there are times when you only have video and you want to create a still picture from it. I thought this might be a good place to share still images that you've taken from videos that you've shot.
I'll start first with a picture of my son hang gliding. The guide used a GoPro to record video of the flight. This was about 10 years ago, so it was only an HD GoPro. But I still love the picture I got from it.
Here I am on another flight.