    |
|
Sets the amount of color contrast in an image before reading it using OCR. Use to override the default OCR contrast set in the playback options, which can help improve the accuracy of returned text. See Troubleshooting OCR issues.
Syntax
OCRSetContrast(ContrastAmount)
Arguments
| Argument | Description |
|---|---|
| ContrastAmount | Amount of color contrast to apply. Enter a value between 0 and 100. For example, 0 does not change the image contrast and 100 makes the image solid black. |
Example
'Saves default OCR settings
lang = OCRGetLanguageFilePath()
contrast = OCRGetContrast()
imgScale = OCRGetScale()
grayConversion = OCRIsConvertingToGrayscale()
Try
'Changes OCR settings for the checkpoint
OCRSetLanguageFilePath("C:\\tessdata\\MICR.traineddata")
OCRSetContrast(50)
OCRSetScale(2)
OCRConvertToGrayscale(True)
'Verifies text in the page footer
Window("ACME Bank").OCRCheckpoint(92, "ACME Bancorp, Member FDIC", 13, 4, 86, 11, False, "Footer text is incorrect")
Finally
'Resets default OCR settings
OCRSetLanguageFilePath(lang)
OCRSetContrast(contrast)
OCRSetScale(imgScale)
OCRConvertToGrayscale(grayConversion)
End Try
| |
|