kim@amdahl.UUCP (Kim DeVaughn) (09/16/86)
[ ... go ahead, eat my bits ... ]
Recently, I purchased a Digi-View for my Amiga, and am now looking
for some kind of "box" that I can best describe as an "NTSC video
color filter". I'm wondering if anyone on the net knows of such a
device.
For those of you who don't follow net.micro.amiga, the Digi-View is
a video digitizer that takes a standard 1 volt p-p NTSC signal as
it's input, and with the s/w provided, produces a data file of that
image that can be displayed, printed, etc. by the Amiga.
Normally, the NTSC signal is produced by a B&W TV camera. For
color digitization, three seperate images are digitized thru red,
green, and blue filters, and then combined by the s/w to produce
a full color picture (320x200 pixels, 4096 colors). The results are
really impressive ... especially considering the Digi-View is less
than $200 (without the camera).
What I would also like to do, is digitize images from my VCR (I have a
Cannon VR-HF600A, which has a "rock-solid" freeze-frame). As is, this
works well in producing monochrome images (from either a B&W or color
source), but needs a "color filter box" between the VCR and the Digi-View
for color results.
Conceptually, this box would have red, green, and blue "color-killer"
switches on it so one could filter out two of the three colors at a
time. The output of the box could be either the actual "red image"
(or green or blue), or the B&W representation of the same ... either
should work just fine based on my experiments.
Anyone have any ideas on where to find such an animal, or how one might
go about building one (I'm a h/w person, but know next to nothing about
video)?
I have looked at several of the "special effects" video processors that
are available. Lots of nifty and interesting things can be done with
these, but so far, none do the kind of thing I've described above. Any
help would be greatly appreciated.
Replies should probably be directed to net.micro.amiga where this
discussion really belongs, or of course you can email me, and I'll
summarize to the net.
Thanks alot!
/kim
--
UUCP: {sun,decwrl,hplabs,ihnp4}!amdahl!kim
DDD: 408-746-8462
USPS: Amdahl Corp. M/S 249, 1250 E. Arques Av, Sunnyvale, CA 94086
CIS: 76535,25
[ Any thoughts or opinions which may or may not have been expressed ]
[ herein are my own. They are not necessarily those of my employer. ]grr@cbmvax.cbm.UUCP (George Robbins) (09/18/86)
In article <3702@amdahl.UUCP> kim@amdahl.UUCP (Kim DeVaughn) writes: >[ ... go ahead, eat my bits ... ] > >Recently, I purchased a Digi-View for my Amiga, and am now looking >for some kind of "box" that I can best describe as an "NTSC video >color filter". I'm wondering if anyone on the net knows of such a >device. > >What I would also like to do, is digitize images from my VCR (I have a >Cannon VR-HF600A, which has a "rock-solid" freeze-frame). As is, this >works well in producing monochrome images (from either a B&W or color >source), but needs a "color filter box" between the VCR and the Digi-View >for color results. > >Conceptually, this box would have red, green, and blue "color-killer" >switches on it so one could filter out two of the three colors at a >time. The output of the box could be either the actual "red image" >(or green or blue), or the B&W representation of the same ... either >should work just fine based on my experiments. > >/kim UUCP: {sun,decwrl,hplabs,ihnp4}!amdahl!kim It looks like there is a pretty good chance that the Amiga Genlock peripheral would be able to do this, with a little jury rigging. One of the things the genlock will do is to convert the external NTSC video sources into a analog RGB signal. You would have to rig up a switch to select the output, perhaps have to combine the selected RGB signal with composite sync, and have to have some kind of monitor coming off of the Amiga composite video or tapped in between the Genlock and the Amiga so that you could effectivly control the Digiview program. This is *NOT* a statement that such a configuration will work, just some discussion about the possibilities. Also, the elusive Genlock is still scheduled for release sometime around the end of the year... -- George Robbins - now working for, uucp: {ihnp4|seismo|caip}!cbmvax!grr but no way officially representing arpa: cbmvax!grr@seismo.css.GOV Commodore, Engineering Department fone: 215-431-9255 (only by moonlite)
kish@caip.RUTGERS.EDU (Bill Kish) (09/18/86)
Does anyone have experience with capturing SUN 3/160 graphics on film, VHS, or Beta ? Does anyone have suggestions on who sells RGB to NTSC encoders and/or a piece of hardware that will perform "scan conversion" whereby 1/2 of the detail of the 1152 pixel line can be captured ? -Bill Kish