Figure 4. 5: Recognition results based on different positions of the plates in
image capture
(a) Characters in middle position (b) Characters at the bottom position
4.4.3 Testing of Different Character Sizes
In this experiment, ability of the system on different character sizes is tested.
There are two reasons why the character size is different from one image to another. First,
the size of the plate is not same with other plates. Second, the distance between the