Character recognition

Ideal

MAE computed on 10 test images

one-level: 0.009

two-level: 0.006

Input (test)

Ideal

One level

Two level

Error pixels

one-level: 187

two-level: 113

5 subwindows within 11x9 window

MAE computed on 10 test images

one-level: 0.010

two-level: 0.004

Input (test)

Ideal

One level

Two level

Error pixels

one-level: 189

two-level: 90

MAE computed on 10 test images

one-level: Not available

two-level: 0.004

Input (test)

Ideal

Two level (another)

Error pixels

one-level: Not available

two-level: 67