#"Snappy" Video Capture?
21-Apr-95 09:52:15
Sb: #4803-#"Snappy" Video Capture?
Fm: ArtisTech 72407,3633
To: John Small 72550,2150
John wrote:
>I was just informed today that Snappy takes time to read in the frame since
>it scans a line at a time, more of less. This means it needs an unchanging
>series of frames during the process.
In the "moving" setting Snappy captures a field (the same thing you
would see on a TV with a moving image if you only had 1/60 to look at
it), Then it shuffles that signal through the parallel port. Now
the software looks at that video data and converts it to a computer
image (bitmap).
In the various "still" settings Snappy captures a field multiple times
(each time a little differently) and by comparing the fields can make
an increadibly sharp image. This, of course, requires that the video
signal remains the same during all of the sepeate captures.
The best way to expain this is to demonstate it on a real Snappy. If
you don't already have a Snappy, ask your local shop for a
demonstation (the nicer ones will let you play with it before you
buy).
Please reply if I confused you more. Being a programmer (not a
custumer service rep), I tend to do that.
Ted Pabon 72407,3633
Software Developer at Play