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:
scanning thresholding skew detection and correction despeckle or speckle removal line removal
border removal detection of preprinted elements (like boxes or rakes) page orientation detection and correction layout analysis classification character recognition 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.
LandscapeHelper 1.0
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ZoneHelper 1.0
ZoneHelper detects inverse text zones. Typical OCR software can handle only binary images with black pixels representing text and white pixels representing background. It isn't unusual in modern documents to have inverted text zones and normal text zones within the same document. The document ...
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Luxand FaceSDK 1.6
Detect human faces and recognize facial features in your applications with Luxand FaceSDK.
Digital camera manufacturers spend millions of dollars developing face recognition technologies for their digital cameras. Digital Signal Processors (DSP) ...
GdPicture Pro Imaging SDK - Site License 5.7.0
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ClearImage Free SDK 1.x
Develop high performance, trouble free barcode recognition and image manipulation applications, in VB, C++ or Delphi.
Production Quality Tools for Data Capture - ClearImage tools offer outstanding performance. They can rapidly recognize any number ...
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GdPicture Pro Image ActiveX ToolKit 2.4
GdPicture is an ActiveX component to view create edit and compose image . GdPicture is an image ActiveX component to create, edit, and compose bitmap images. It can read, convert, and write images in a large variety of formats. GdPicture control can be used from any 32-bit Windows development environment that can call ActiveX ...
