Phil Taylor wrote:
>
> For some time I've been idly contemplating writing an OMR program which
> would produca first draft abc from picture files. The first task
> such a program would have to perform is to locate the staves. Now
> a pattern of five equidistant horizontal lines is very distinctive,
> and it's not hard to devise an algorithm that will detect it, even
> if the lines are a few degrees off from the horizontal, as is likely
> to be the case in many scans.
That sounds sensible, but I actually have tried an OMR program that
couldn't even manage that. I scanned in the clearest print I could find
in a rather high resolution and all I got was a "no music on this page"
message :-|
>
> If all you want to do is decide whether a picture file contains music
> you can probably make that decision with a high degree of accuracy
> based on the presence or absence of staves.
True, but deciding what te music actually was, would be much harder.
Frank Nordberg
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