Abstract:

Focusing on image dead pixels due to various factors in the manufacturing process of the imaging sensor and in applications, this paper proposes an algorithm to detect and correct dead pixels. The algorithm judges whether certain dead pixels locate at edges, and if so, calibrates them so that edges are preserved. Experimental results show effectiveness of the algorithm in removing dead pixels. Compared with other algorithms, the algorithm has stronger edge preserving ability, better processing performance and less detection errors.

Key words: image dead pixel, dead pixel detection, dead pixel correction