On Friday 03 December 2004 15:38, Yosef Leibovich wrote:
> A school wants to automatically process hand filled forms of grades
> (that is there'll be, say, 5 squares/circles for each student, and the
> teacher will blacken the corrrect grade, the paper will be scanned and
> the computer should automatically detect which square was blackened)
> does anyone know of existence of a similar project? I'd like to hear of
> non-opensource projects as well.
Many years ago I played with such an equipment. It was a
special type of scanner (which back than was pretty expensive).
It used special forms:
- They had registration "barcodes" on the edges to sync the
reader.
- They where printed in a color invisible to the reader.
- Each "circle" was positioned in a specific raw/column
(relative to some fixed origin).
- They should have been filled with a visible color (the best
was simply a pencil AFAIR).
The reader (which had a serial or parallel interface) returned
the results as a sequence of row results -- each with the
"filled" columns.
So back than the software was easy, but the reader was expensive.
Now with cheap scanners and OCR, the situation may be reversed.
--
Oron Peled Voice/Fax: +972-4-8228492
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Microsoft is NOT the answer. Microsoft is the Question.
The answer is: "NO!"
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