A Novel Approach for Recognition of Tamil Characters in Vehicle Number Plate based on Region Pixel through Surveillance Camera
1E.K.Vellingiriraj, Assistant Professor Department of Computer Science Engineering Kongu Engineering College Perundurai Erode – 638 052 TN India.
2Dr. P. Balasubramanie, Professor Department of Computer Science Engineering Kongu Engineering College Perundurai Erode – 638 052 TN India.
Manuscript received on August 11, 2013. | Revised Manuscript received on August 15, 2013. | Manuscript published on August 25, 2013. | PP: 14-17 | Volume-1, Issue-10, August 2013. | Retrieval Number: J04130811013/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Character segmentation is an important step in License Plate Recognition (LPR) system. There are many difficulties in this step, such as the influence of image noise, plate frame, rivet, the space mark, and so on. In natural language Number plate, there are additional problems faced to recognize the characters including Tamil characters. This work proposes a novel algorithm for character segmentation of degraded license plate based on Region pixel. Firstly, this algorithm performs preprocessing on the license plate, such as size normalization, uneven illumination correction, contrast enhancement, incline correction and edge enhancement; then, locates the character segments according to the vertical projection and merges the character segments that belong to the same character or splits the wider character segment according to the prior knowledge; finally, segments the characters according to the number and the width of the character segments. And last step convert the Tamil characters to equivalent English alphabets. This process is performed by the algorithm which takes the digital image as an input and gives textual form of license plate characters as an output. There are several methods used to perform this process.