Abstract:

        Object edge, an important image characteristic, is quite significant in the processing and recognition of an image. Noise and multiple interferences overlaid in the acquisition of an image blur the edge of the image and impair the extraction effect. We therefore present an adaptive median filtering and wavelet decomposition and reconstruction based ant colony algorithm for edge extraction of an image in practice. Vast experiments show that the algorithm can well suppress noise and has better edge extraction effect.

Key words: daptive median filtering, wavelet decomposition and reconstruction, ant colony algorithm, edge extraction