Research Article
An Automatic Traffic Sign Detection and Recognition System Based on Colour Segmentation, Shape Matching, and SVM
Table 3
Modification of traffic signs used to train NN.
| ā | Octagonal (stop) | Circular (do not enter) | Circular (do not park) |
| Original | | | |
| Greyscale conversion | | | |
| Illumination | | | |
| Intensity correction | | | |
| Applying histogram equalization | | | |
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