VIDI digitizer

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A video digitizer for the Amstrad CPC from Rombo Productions.

Scanning Modes

The software supports 3 modes (at hardware side, there are only 2 modes):

  • Mode 2 - 640x200x1 - true hardware mode
  • Mode 1 - 320x200x4 - true hardware mode
  • Mode 0 - 160x192x16 - special software mode: the software performs sixteen Mode 2 scans (with different brightness settings in each pass), and combines them to a 16-color image. Obviously, this method works only with still images (camcorder aimed at still image, or VCR with "freeze picture" mode). Moreover, the CPC with CTM640/CTM644 colour monitor can't display 16 grayscales so the picture will look like crap, however, it will look pretty much perfect on a GT64/GT65 green monitor. The software scans only 192 lines in this mode (not 200 lines), but this is just due to lazy programming (the programmer didn't handle the region "under" the OSD menu at the bottom of the screen). In mode 0 scanning, the user/software selected brightness is ignored (because the whole sixteen I/O selectable brightness values are used for the sixteen passes), so, brightness can be adjusted only via the potentiometer.

Pictures

  • The VIDI video digitizer

  • Intern VIDI

  • Vidi Disc

  • Example of VIDI digitizing

  • Example of VIDI digitizing

  • Example of VIDI digitizing

  • Mode 0 on GT65

  • Mode 0 on CTM644

Publicity

  • Vidi

  • Advert 1

  • Advert 2

Reviews

Manual

Download

Software was available on cassette, disc, and (as an upgrade option) on ROM. The latter one requires an external ROM BOX to be of any use (the Vidi board doesn't include a ROM socket).

See also

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