User:Hrishikesh.kb/OCR

Corpus

Notes Based on the paper Building Data Sets for Indian Language OCR Research by C.V. Jawahar, Anand Kumar, A. Phaneendra, and K.J. Jinesh , IIIT Hyderabad,

Generation of large database of annotated document images involves

1. Identification of the content/source
2. Employing well-defined,repeatable pre-processing steps for creation of multiple images suited for various DIA tasks;
3. consistent labeling procedures for annotation
4. structured storage of annotation information for effective access.

Annotation

• Labelling image components(often with text)
• Additional details such as
  • Layout information
  • Language/Script
  • Scanning parameters
  • Printing parameters

etc are usefull

• Levels of annotation
  • Structural level
  • Functional level
  • Content level

out of which 'content level' annotation of critical for OCR