OCR engines

An OCR Engine is used in the Digitization component, to identify text in a file, when native content is not available.

Note:

The images that need to be processed should have a resolution range of:

• min: 50 x 50 pixels
• max: 9000 x 9000 pixels

Here is a selection of OCR Engines that you can choose from, according to your needs, throughout the Document Understanding^TM Framework.

OCR Engine	Activity Pack	Debug Logs Format in Logs Folder	Reports Confidence
UiPath Extended Languages OCR	UiPath.OCR.Activities	${date:format=yyyy-MM-dd}
UiPath Document OCR	UiPath.OCR.Activities	${date:format=yyyy-MM-dd}
OCR for Chinese, Japanese and Korean	UiPath.Core.Activities.CjkOCR	${date:format=yyyy-MM-dd}
OmniPage OCR	UiPath.OmniPage.Activities	${date:format=yyyy-MM-dd}
Google Cloud Vision OCR	UiPath.UIAutomation.Activities	${date:format=yyyy-MM-dd}	if DetectionMode is set to TextDetection (default) if DetectionMode is set to DocumentTextDetection
Microsoft Azure Computer Vision OCR	UiPath.UIAutomation.Activities	${date:format=yyyy-MM-dd}	if UseReadAPI is not selected (default) if UseReadAPI is selected
Microsoft OCR	UiPath.UIAutomation.Activities	${date:format=yyyy-MM-dd}
Tesseract OCR	UiPath.UIAutomation.Activities	${date:format=yyyy-MM-dd}

Note:

When debugging errors, you can always visit the logs folder and check the relevant OCR log files. Read more about logging here.