GiDoc: Screenshot 4

Some of the Preprocessing steps that can be aplied:
  • Original image
  • Substract RLSA to the original
  • Denoising
  • Levels normalization
  • Median filter
  • Slant correction.
  • Normalize height.
Feature extraction algorithms:
  • PRHLT (gray plus derivatives) feature extraction:
  • FKI (geometric based) feature extraction: