Xref: utzoo comp.sys.atari.st:33255 comp.sys.atari.st.tech:891 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!uunet!abcfd20.larc.nasa.gov!tab00.larc.nasa.gov!scott From: scott@tab00.larc.nasa.gov (Scott Yelich) Newsgroups: comp.sys.atari.st,comp.sys.atari.st.tech Subject: Re: Frame grabbers and Video digitizers Message-ID: Date: 12 Dec 90 22:22:42 GMT References: <90345.130325MV010320@NDSUVM1.BITNET> <1990Dec12.001400.18973@ecst.csuchico.edu> Sender: news@abcfd20.larc.nasa.gov (USENET File Owner) Organization: NASA Langley Research Center, Hampton, Va. 23665 Lines: 46 In-Reply-To: ekrimen@ecst.csuchico.edu's message of 12 Dec 90 00:14:00 GMT >Computer Eyes I think is the best, or at least, the most popular. >(We all know that most popular doesn't mean the best. :^) It only >digitizes in 16 colors, but read on.... I have color computer eyes. First I would like to say that the company that makes color computer eyes is one of the best I have EVER had to deal with. They have MY highest recommendations. Color computer eyes scans a signal and produces RGB data. The ST low res normally supports 16 colors-- thus the normal image shown with color computer eyes has 16 colors. Now, you can do anything you want with the RGB data and one program out will use this data to make a Spectrum picture. With this addition, I find the images quite acceptable. The resolution for these images is 320 pixels by 200 pixels. When these images are viewed on a Sun, for example, with its 1152x900 pixel screen-- the image looks rather small. There are various ways to provide a signal for color computer eyes: I tend to use a digital vcr with STOP frame. Even without a tape in the mechanism, I can press a button and freeze the image on the screen. This image is perfectly still. I find that the scanned image will be almost identical (sometimes the TVs color settings are slightly off.) Next, I have used a color camera (I don't have details), but I find that the LIGHT used makes a world of a difference. I find that the best images are scanned DIRECTLY from the camera with a BLUE light. These images are quite sharp and they are exactly what I was looking for when I purchased the video digitizer. Send me email if you want to talk more... Scott -- Signature follows. [Skip now] ----------------------------------------------------------------------------- Scott D. Yelich scott@[xanth.]cs.odu.edu [128.82.8.1] After he pushed me off the cliff, he asked me, as I fell, ``Why'd you jump?'' Administrator of: Game-Design requests to ODU/UNIX/BSD/X/C/ROOT/XANTH/CS/VSVN/ -----------------------------------------------------------------------------