On 26 Dec 2001 at 11:45, Kent Gittings wrote: > Sorry but color CCD digicams use exactly the same technology as scanners in most > cases. The only interpolation they do is if they are capable of producing a > result that has higher res than the number of actual pixels in the CCD grid.
I can't get my head around your statement above. No colour film scanners that I have ever used use interpolation to generate a higher pixel count than the raw sensor provides whereas virtually every colour digital camera is required to interpolate the sensor data in order to produce any image at all. This is because colour film scanners usually utilize a 3 linear arrays each with a primary colour filtration hence their data acquisition is 1:1 however the data is acquired line by line in a non-time constrained manner. Whereas the sensor in a camera (not the tethered studio back type) has the three colour filters over adjacent pixels in a 4 pixel grid ie. 2 green a blue and a red and the data is captured across the sensor virtually simultaneously so the real resolution is far less than the sensor pixel count. Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications.html - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
