Frame grabbing


wxsour

Member
Dear all,

I have been researching on the above mentioned method of achieving stills from a video file. After trials w videos I got off of YouTube including 1080p ones, I realised that my images are still of a rather low quality.

May I know what affects the image quality and how, if possible, can I get images at least of a similar quality of a still camera?

1. Program used for image grabbing: videopad- I pause the video at the time line and proceed to take a snapshoot with its interface (pixel range well around 2000px on its long end)

2. Does the video camera matter? I would be working with small video cameras like the iPhone or the gopro. Does the fps matter? Is it true that the higher the fps the clearer the image?

3.professional techniques such as deinterfacing? Does it play a part? What should I do?

Thanks for your patience and for viewing my queries. All comments will be valued:)
 

Usually if I do frame grabbing. I must reduce the size around 1/3 before it looks acceptable to me ...

So a 1920 x 1080 image must be resized to around 600-700px before using. If not, it will look 'low quality'.
 

It looks "low quality" because it has motion blur or because YouTube videos (even 1080p) are compressed. If you are shooting make sure you set to the highest shutter speed, Your focus must be dead on as well. Fps does play a part too. Right now our consumer cameras can only capture 60fps, Which is good enough to capture fast movements.
 

for me, i just go frame by frame, find one where there's least motion blur, blow up that window to 100%, use apple+shift+4 to do a screen capture, and i'm done!!! high quality? low quality? it's as high (or low) as your original footage, as sharp as what you actually shot...
 

for pixel peeping???
 

Haha what's with pixel peeping? I just want a nice quality image:) anyway for those who are also figuring this out, mpeg stream clip is a freeware which allows us to view a video frame by frame.:) closest to a clear frame I've ever gotten:)
 

Back
Top