Front vs Back page when scanning duplex

Discussions about TWAIN & WIA scanning in GdPicture.NET using GdPictureImaging.
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mp33487
Posts: 54
Joined: Wed May 06, 2009 4:26 am

Front vs Back page when scanning duplex

Post by mp33487 » Thu Feb 11, 2010 9:32 pm

Is there a way to determine if the page we're saving is the front side or back side of an image. Yes, we could do a odd/even counter. But the issue is some scanners will automaticly discard blank pages. This that case we may get several fronts without back pages in a row and our manual count would be off. Is there a property to check for the image returned to know this?

mp33487
Posts: 54
Joined: Wed May 06, 2009 4:26 am

Re: Front vs Back page when scanning duplex

Post by mp33487 » Mon Feb 15, 2010 7:11 pm

Can I get an answer please???

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Loïc
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Re: Front vs Back page when scanning duplex

Post by Loïc » Tue Feb 16, 2010 10:12 am

Hi,

Unfortunately, I see nothing in TWAIN specification for this issue.

A workaround consist to use the internal blank page detection engine of GdPicture.NET

With best regards,

Loïc

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