In article <6gfqjo$o83$1@nnrp1.dejanews.com>, tclune@datx.com says...
>In article <352A61CA.8EB2C7EC@wkpowerlink.com>,
> Chris Burns wrote:

>> Snappy 2.1 will capture at the following resolutions: 160x120, 320x240,
>> 640x480, 800x600, 1024x768, 1280x1024, and 1500x1125. Inexpensive and
>> works well.

>> editor@strangevoices.com wrote:
>> >
>> > Here's my situation:
>> >
>> > I have Hi8 video footage. I want to capture some still frames for use in a
>> > printed book. Ideally, the resolution needs to be better than the 640x480
>> > pixels that is standard. Is it possible to grab stills at higher resolution?
>> > (I'm not necessarily going to do it with my own computer; I'm just curious if
>> > it's possible at all, and what the best resolution is.)

>A clarification is in order here. No video board is grabbing frames off a Hi8
>source in 1K x 1K or higher resolution. What the video grabber's software is
>doing is interpolating data to make a larger image. By the way, desktop
>scanners also routinely do this, when they "scan" at 2 or 3 K dpi -- the
>actual scan rate is usually 600 dpi or so, and the rest is interpolated. This
>is not a bad thing to do -- the only point is that there is no need to do it
>with your acquisition software. You could just as easily grab a 640x480
>image, and import it into image processing software that would do the
>interpolation for you.

The above is quite correct - but if the video image is of a still subject,
the Snappy can use up to 8 fields for maximizing the information available
for a higher-than-640x480 grab...