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Forums › TWAIN Specification › TWAIN 2.4 Specification › Using character recognization of scanned documents in Robotics Process Automatio
This topic contains 1 reply, has 1 voice, and was last updated by markm 1 month, 3 weeks ago.
I am looking for information on any improvements of character recognition.
Character recognition is usually improved in the following ways:
– if capturing TWPT_BW, make sure automatic thresholding is on, if available, and turn on noise removal
– if capturing TWPT_GRAY, capture the data either TWCP_NONE, or if using TWCP_JPEG, make sure the ICAP_JPEGQUALITY is at a high setting
– select an ICAP_X/YRESOLUTION that evenly divides into the ICAP_X/YNATIVERESOLUTION for the scanner.
– set ICAP_AUTOMATICDESKEW to TRUE, if available
– if ICAP_AUTOMATICROTATE is available, trying turning it on to get the character in the correct orientation
– if the desired text is black on a color document, consider using ICAP_FILTER to remove color content