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CERT

Driver for ComputerEyes R/T video capture board


Syntax

CERT [<switches>] <cFILENAME.TGA>


Switch

/ega
Capture a 640 x 350 x 16 color Targa 8 file in video mode 16.

/vga2
Capture a 640 x 480 x 2 color Targa 8 file in video mode 18.

/vga16
Capture a 640 x 480 x 16 color Targa 8 file in video mode 18.

/vga
Capture a 320 x 200 x 256 color Targa 8 file in video mode 19 (default).

/svga
Capture a 640 x 480 x 256 color Targa 8 file in SVGA.

/512
Capture a 512 x 480 x 24-bit color Targa 24 file.

/640
Capture a 640 x 480 x 16-bit color Targa 16 file.

/320
Capture a 320 x 200 x 16-bit color Targa 16 file.

/mono
Set to monochrome (default is color) (Targa 8 only).

/nopre
Remove preview screen.

/svideo
Capture from SVIDEO source (default is composite).

/pal
Capture from PAL video source (default is NTSC).


Arguments

<cFILENAME.TGA>
The Targa image file in which to save the captured image.


Remarks

CERT is a high resolution driver for the Digital Vision 24-bit ComputerEyes 
R/T video capture board that offers features not found in the Digital Vision 
software. Generally, CERT provides for improved video capture with optimum 
palettes, not possible with Digital Vision software which uses a fixed 
palette. Targa 8-bit flags cannot be used on the command line at the same 
time as Targa 16-bit flags with CERT.

Default is to NTSC analog composite video through the RCA jack on the 
support bracket. SVIDEO is a higher quality video signal not compatible with 
and different from NTSC, requiring special SVIDEO equipment. SVIDEO signal 
goes through the 4-pin DIN connector on the support bracket. PAL video 
signal follows European/other countries' standards. Follow manufacturer's 
instructions for best results.

For best results, follow these steps in order:

1.  Capture full screen with /640 switch to Targa 16 file format or capture 
    with /512 switch to Targa 24-bit format, if you have sufficient storage 
    space on your hard disk for the large temp file.

2.  Use ScaleTGA (part of Sunshow, standard edition) to reduce image size of 
    full screen Targa 16 to a window smaller than the screen width and height 
    of the required video mode you wish to use.

3a. Use TGA2GIF or TGA2PCX (part of Sunshow, standard edition) with the /d 
    dither switch to optimize the palette and convert to GIF or PCX, 
    remembering to pass the screen width and screen height values to the 
    8-bit format, since Targa is video mode independent. Do not dither twice.

3b. Or, use CutTGA (part of Sunshow, standard edition) with the /d dither 
    switch to optimize the palette and convert to a Targa 8-bit file. Do not 
    dither twice.