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libprecog-manuals's Introduction

PRLib (libprecog) manuals

Pre-Recognition Library manuals.

The main aim of the library - prepare image for recogntion. Image processing can really help to improve recognition quality.

Features:

  • Auto crop image
  • Background normalization
  • Binarization (Global Otsu, Local Otsu, Sauvola, Feng, Niblack, Wolf-Jolion, NICK, FBCITB, Adaptive)
  • Blur detection (LAPM, LAPV, TENG, GLVN)
  • Color balance
  • Crop
  • Deblur (Gaussian-based)
  • Denoise (Non-local Means Denoising algorithm, Salt-Pepper)
  • Deskew
  • Find angle and orientation of an image
  • Gamma correction
  • Hole punch removal
  • Line removal
  • Perspective warp removal
  • Thinning (Zhang-Suen, Guo-Hall)
  • White balance (Simple, Grayworld)

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