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Re: [Rollscanners] New Source of CIS? - Old software redux
It may be of interest here, I have been using my scanner quite a bit as
of late. I purchased 40 Caliola rolls, which has given the scanner
quite a workout.
If anyone is still interested in using the Rollscan-1 board and
associated software, I have such working. If anyone would like a copy,
all they have to do is ask.
I modified the "Merlin Program." to make CIS files rather than *.bmp
files. The Band organ rolls I am working with are about 225 feet in
length which at close to 300dpi works out to about half a million scan
lines. When saved uncompressed the files are about 250 megabytes. They
fill the hard drive fast.
Instead of using the Rollscan-1 hardware, which is a bit overpowered for
Bi-level scanning, A simple USB interface is used. Details of this
interface were posted to this group as well as the MMD. A dedicated
microcontroller is used clock the array and return data to the host
computer.
One of the advantages of clocking the CIS array at the rated speed of
1Mhz using a dedicated microcontroller is that unlike the MK4 systems,
the array does not go into saturation. This allows for the most
transparent of rolls to be scanned with almost no pin holes visible.
The scanner is also quite fast with the 225 foot roll completing in
about an hour. I also have a project in the works, which should double
the buffer space for the data in the chip. Without a buffer on the USB
board a fast laptop is required.
The current USB based scanning system is Windows XP with Warren
Trachtman's converter used, with modified XML files to convert the scans
to MIDI.
-julie
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