The AIForged Image Processor Service is used to pre-process documents before being sent to OCR services in order to increase the accuracy of the OCR.
The following operations are available when pre-processing documents:
|Remove Comments||Remove any electronic comments from PDFs.|
|Rotate||Rotate the pages of a document. This is mostly used to deskew pages.|
|Greyscale||Convert the image to Greyscale.|
|Invert||Invert the colour of an image.|
|Mirror||Mirrors an image .|
|Remove Garbage||Used to remove small spots such as pen marks.|
|Remove Color Marks||Remove marks that may affect OCR accuracy, such as bank stamps.|
|Whiten Background||By specifying lower- and upper greyscale bounds, remove possible watermarks that may negatively impact OCR accuracy. Bound values are between 0 and 255, with 0 being black and 255 being white.|
Consider the document below, with a “DRAFT” watermark.
The AIForged Image Processor Service can be used to remove the watermark and whiten the background.