A “line” is a pixel pair… One “on”, one “off”… and its a “horizontal” resolution in its main implementation and meaning. Vertical resolution, at least in TV land, is based on the media format itself… ie 720×480, where you get 480 “rows” of information composed of 720 columns (discounting the pixel aspect ratio, but you get the idea?).
There is a fudge indice — called the “Kell Factor” that is an interesting thing to waste some time with. And if you really want to stir the pot, lets get involved with Nyquist.
And, as far as the “double standard” of hardware platform for Color goes….
There is the low end, which will apparently allow the app to start… and then there’s the high end, where it will actually run, and if you find the magic combination of processors, GPU’s, Bus/Disk speed, and a few other things… the holy grail is “real-time” playback! Quoting the Rutles: “All you need is cash…” A whopping bag of it.
JPO