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This topic and its replies were posted before the current version of LEADTOOLS was released and may no longer be applicable.

#1 Posted : Wednesday, January 24, 2007 7:45:48 PM(UTC)

Ram

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Posts: 4

Hi All,

We are currently using Lead Tool 14.5 version to interact with TWAIN drivers to get a image from HP 4370. The scanner top cover has slot and if the document is small we are getting the slot image also with scanned document. I would like to know if there is any facility in the TWAIN that can help us to avoid the cover slot in the scanned image or is there any way we can post process and remove the extra slot image.

Thanks in advance for your help.

Thanks and regards,

Ram.


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#2 Posted : Wednesday, January 24, 2007 10:46:14 PM(UTC)

Bashar

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You can try setting the image frame such that only the document is
scanned, but you need to know the image size and location in the slot
beforehand for this to work. Or you can trim the unwanted parts
of the image after scanning. You may or may not be able to so that depending on the color of the unwanted area.

I need to to know which programming interface (e.g. COM, .NET, etc.) you are using to be able to give you more details.

Also, can you post a sample scanned image where the slot appears?

Thanks,

#3 Posted : Thursday, January 25, 2007 8:04:06 AM(UTC)

Ram

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Posts: 4

Hi Bashar,

Thanks for the information. We are using the lead tools C++ library for image manuplation. The image we are getting is a cheque image and from the bottom of the cheque we are getting a dark rectangler line.

Regards,

Ram.

#4 Posted : Thursday, January 25, 2007 8:22:37 AM(UTC)

Bashar

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Hello Ram,

Can you please attach a sample image for me to test with? Make sure to put it in a ZIP file to be able to attach it.

Thanks,

#5 Posted : Thursday, January 25, 2007 8:37:12 AM(UTC)

Ram

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Posts: 4

Hi Bashar,

Attached is the sample image.

Regards,

Ram.

File Attachment(s):

Sample_image.zip (6kb) downloaded 25 time(s).

#6 Posted : Sunday, January 28, 2007 4:43:10 AM(UTC)

Bashar

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If the image is guaranteed to always be at the same location (i.e. if
it will always occupy the top portion of the image), then you can use
the SetImageFrame function to spacify the location and size of the image you want to scan. This way, only the check will be scanned.

#7 Posted : Sunday, January 28, 2007 9:54:34 AM(UTC)

Ram

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Posts: 4

Hi Bashar,

Thanks for your response. Is there a way to trim or crop the sample image that I have attached. If you can provide a solution that will be helpful.

Regards,

Ram

#8 Posted : Monday, January 29, 2007 1:07:48 AM(UTC)

Bashar

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Yes, use the LBitmapBase::Trim function.

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