Question

OCR engine update with newer toolkit?

SDK

Updated August 21, 2014

asked on August 20, 2014

I have a customer that is working with the LF toolkit 8.3 with a program that was built in order to OCR documents within Laserfiche. When stepping through to the OcrEngine.Run() method it throws an exception error:

Exception from HRESULT: 0x800401A5

I was wondering if the latest toolkit can be used with Laserfiche 8.3. Also, if this is the case does is the OCR engine that comes with the toolkit gets updated with the latest version or would they have to have the latest version of the client. I am not sure if they are using client automation in order to do this process or not. I can get this information if needed.

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Answer

SELECTED ANSWER

replied on August 20, 2014 • Show version history

The latest version of the Laserfiche SDK (which is version 9.1 at the time of this post) can be used with Laserfiche 8.3. The latest SDK no longer ships with an OCR engine, although it still has the OcrEngine class and you can OCR. You need to install the OCR engine separately or have some Laserfiche software installed that contains the OCR engine.

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replied on August 21, 2014

In order to have the OCR engine update/replaced would it be safe to say to install the latest version of the client in order to obtain the OCR engine even if the user server is version 8.3? Would I be able to run the setup for the new OCR engine that is within the Laserfiche install folder? Please let me know. Also to note the customer will be upgrading their server so they will be using the DCC eventually but there is still a need to schedule the upgrade. Thanks for your help!

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replied on August 21, 2014 • Show version history

The Laserfiche 9.1 client installation package allows you to install OCR by itself, without installing the rest of the client. That is probably what you should do. The Laserfiche 9.1 client cannot connect to LFS 8.3, even though SDK 9.1 libraries can connect to LFS 8.3.

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replied on August 21, 2014 • Show version history

Hi Cristobal,

To add to what Michael said, if your goal is to automate the OCRing of documents, the new Laserfiche Distributed Computing Cluster (version 9.1) allows you to schedule OCR with a built-in Workflow activity. Depending on how you would like to automate OCR processing, this activity may work quite well for you. If you are interested, you can read more about Schedule OCR activity in Workflow and about the Distributed Computing Cluster in general.

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OCR engine update with newer toolkit?

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