RakeHelper Free Download
RakeHelper Free Download.
Forms often contain preprinted elements as field rakes (or combs) or character rakes (or combs). Scanned document in some cases, also have horizontal or vertical lines due to the banding or folding of papers. Dealing with those artifacts is a challenging task for a system that tries to detect rakes during processing business documents.
The document structure analysis and character recognition are usually done in several phases:
skew detection and correction
despeckle or speckle removal
detection of preprinted elements (like boxes or rakes)
page orientation detection and correction
Each step must be completed well enough for the performance of the sequence and result to be successful. Steps that follow the rake removal are inefficient if the correction fails.
RakeHelper searches for rakes the aim being the extraction and recognition of the characters. Also rakes can be used as features in the step of form identification and recognition as anchor elements.
RakeHelper expects as input a monochrome image.
RakeHelper keywords: rake, combs, detection, removal, recognition, read, image, processing, sdk, toolkit
BoxesHelper searches for boxes the aim being the extraction and recognition of the characters. Also boxes can be used as features in the step of form identification and recognition as anchor elements.
BoxesHelper expects as input a monochrome image
ZoneHelper detects and automatically converts inverted text zones and change white-on-black text to normal black-on-white text.
LinesHelper finds and removes horizontal and vertical lines and repairs overlapping text and graphics on binary images.
BordersHelper removes noisy borders in monochromatic images of documents introduced by the digitalization process using automatically fed scanners.
DespeckleHelper provides a successful method for automatically improving the quality of document images and a marked decrease in OCR error rates.