Table 2 Description of the CCPD dataset
From: Performance enhancement method for multiple license plate recognition in challenging environments
Category | Conditions | Input image resolution (pixels) | No. of images |
|---|---|---|---|
Base | Vehicles on roads with one license plate per image | 720 × 1160 | 199,996 |
DB | Images of vehicle in extreme bright and low light conditions | 720 × 1160 | 10,132 |
FN | Vehicle images were taken from far as well as closeup to cover various LP sizes | 720 × 1160 | 20,976 |
Rotate | Vehicles images with angular views | 720 × 1160 | 10,053 |
Blur | Blurriness is introduced due to the movement of the camera | 720 × 1160 | 20,611 |
Weather | Vehicles images taken under diverse weather conditions | 720 × 1160 | 9999 |
Challenge | Most challenging images include unconstrained illuminations and weather conditions along with images having multiple image processing problems (blurriness, size of LP, glare, etc.) | 720 × 1160 | 50,003 |
Tilt | Vehicles images with angular views | 720 × 1160 | 30,216 |