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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

4482.0. "DCTV display/digitizing system" by MQOFS::LEDOUX (Reserved for Future Use) Fri Feb 01 1991 15:44

    I couldn't find any note on the DCTV so here is one.
    
    I was going to buy a Video-toaster, but at the store, the
    "salesman" told me that it would work onlu with a live camera
    as input.  I really need to hook a VCR on it.  In order
    to get synchronized input and output on 2 VCRs I have
    to buy a Time base corrrector. ($2K to 3K...more than the VT)
    
    Indeed I quickly switched to something less "professional"
    and opted for a genlock and a DCTV "sort-of-frame-grabber".
    
    I haven't plugged it yet, but I played with it in the store,
    In this topic, I'd like to get anybody's opinion, on the DCTV
    gizmo.  Any input are welcome. (on the DCTV subject, not the
    toaster!)
    
    Vince.
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4482.1ELWOOD::PETERSFri Feb 01 1991 17:097
    
    
    	I just got a DCTV for my system. I'm planning to put it to
    the test this weekend.
    
    		Steve
    
4482.2CARROL::MELLITZSun Feb 03 1991 14:054
    What is "DCTV?"  Who makes it?  How much do it go for?
    
    
    ... Rich
4482.3Digital Creations.SALEM::LEIMBERGERMon Feb 04 1991 05:3213
    DCTV is a framgrabber, 24 bit framebuffer unit. It is made by Digital
    Creations. I do not own one yet,but I had the opportunity to check one
    out at the dealers. It is a black box around 5"X 6" X 2" that plugs
    into the parallel,and RGB ports on the Amiga. The software includes a
    paint program that allows you to paint in NTSC video. It has a video
    input,and output(RCA Jacks). I am looking for a paintbox type product
    but have several reservations about DCTV. First I want something that
    will work with my Supergen 2000s. Because it lives directly in the 
    video slot I don't see this happening. Second I would have liked to see
    the video connectors use BNC type connections. I am sure the people
    that own them now will be more than willing to give a hands on review.
    cost? it lists for around $495.00 if I am not mistaken. I am contacting
    Digital Creations for more info. 
4482.4Which GenlockSALEM::LEIMBERGERMon Feb 04 1991 05:372
    re .0 What Genlock Are you using?
    					bill
4482.5An opinion on the gizmo.MQOFS::LEDOUXReserved for Future UseMon Feb 04 1991 11:1537
    I had the week end to experiment and I must say that I am satisfied
    but it has some flaws.
    
    The main flaw is when you want to digitize a frame for IFF use, it
    takes over one minute to get the final picture.  If you have played
    with a frame grabber, you can see the result on-screen and you under-
    stand the importance of the correct light to get a decent IFF frame.
    With the frame grabber, you can get a good frame in seconds, with the
    DCTV, it "may" take up to 10 tries in order to get it.(>10 minutes)
    
    Perhaps after many uses, I may "get to know" how to correctly light
    the subject? Only time will tell.
    
    The 24 bits pictures are great though.  What you see is what you get.
    The input type may be software controled as Tape or camera.  When 
    reading a tape (freeze frame must be clear), it "time base correct it"
    in the software. It makes the digitization longer.  Unfortunately I
    don't have an accelerator, maybe this will justify to buy one?
    
    I have a cheap Amigen genlock and while in 24 bits, (paint or digitize) it
    doesn't work, I have to use the video out directly to my set. I cannot
    go trough the genlock.  I guess I'll have to build a video switch
    someday. It only works when I am in scan mode, i.e: press mouse to
    start digitizing.  I will borrow my friend's Supergen soon to experi-
    ment.
    
    The sofware I got is pretty new. (15-Jan-1991) and the box says 
    copyright 1991. It seems to be freshly out.
    
    And finaly I think the book stink.  It is very poorly done. Almost no
    information.  Just try to find what is a particular gadget do... Good
    luck.
    
    
    Over all, It ain't bad for less than $500.00 but it's not perfect.
    
    Vince.
4482.6exitSALEM::LEIMBERGERTue May 07 1991 11:031
    What is the file format for DCTV. 
4482.7Supports IFF24 etc...CGOFS::DREWSteve DrewTue May 07 1991 18:2117
->     What is the file format for DCTV. 

	DCTV will any IFF resolution picture from 2 colors to IFF24.

	Normally when digitizing you would save the picture in IFF24 or
	DCTV format. The later is a compressed format resulting in approx
	150K file rather than a 500K+ file in IFF24 format, one of the nice
	things about DCTV.

	It has a convert module that converts the digitized picture to any
	Amiga format, and does it VERY well. I have digitized some nice
	images and converted them directly from IFF24 to GIF (using PPM)
	and displayed them on a DEC workstation with very good results.

	Steve.

4482.8MQOFS::DESROSIERSLets procrastinate....tomorrowWed May 08 1991 12:505
    I was also able to share IFF24 pictures taken with a frame grabber so
    that they could be displayed by my buddy's DCTV.
    
    Jean
    
4482.9Digitizing from AG1960RIPPLE::LUKE_TETerry Luke SLO (Utah)Thu Jan 02 1992 00:5214
    I have had trouble getting good digitized pictures from my S-VHS AG1960
    with the DCTV.  My Sony Camcorder (V801) digitizes in freeze frame mode
    quite well, but the AG1960 produces very jagged pictures.  An article
    in AVID says the 1960 produces beautiful results.  Somewhere in another
    article I read there is a keystroke for use in DCTV that switches
    whether it starts with an odd or even line in digitizing, then some
    VCRs do it differently.  I wanted to try this to see if it helps, but I
    can't remember the keystroke, nor can I find the article anywhere and
    its not in the manual anywhere?  Any ideas how to get good freeze frame
    digitizing from the AG1960 or what the keystroke might be?
    
    Thanks,
    Terry