Hi there, the scanners are calibrated through xsane. However, I don't have any ICC profile provided either by Canon, or from xsane. I'll have to check the provided firmware or software packages from Canon, to extract any ICC Profiles.
So far though, the quality given by only doing 8-bit has been more than acceptable for myself and my family; everyone in the family has been fairly excited and glad with the results.
With any future projects where I strongly feel the need for accurate archival, I'll definitely be using better hardware, and I can only hope whoever is paying me to do that would provide me with a nice piece of color calibration hardware.
xsane doesn't do any actual color calibration, just some heuristics for color correction. There's also no fancy hardware involved for scanner calibration (that's required for calibrating printers, though) - all you need is to purchase a "known good" color chart printout off of the web (or eBay) and scan it then process the resulting TIFF w/ Argyll to generate an ICC (assuming its one of the charts that Argyll has the "correct" color values for, otherwise you'll need to buy a chart that comes with a "correct" model on a CD/USB alongside it or else use a "good enough" color values chart that someone uploaded).
So far though, the quality given by only doing 8-bit has been more than acceptable for myself and my family; everyone in the family has been fairly excited and glad with the results.
With any future projects where I strongly feel the need for accurate archival, I'll definitely be using better hardware, and I can only hope whoever is paying me to do that would provide me with a nice piece of color calibration hardware.