A simple and efficient algorithm for multifocus image fusion using morphological wavelets

Authors:
Ishita De;Bhabatosh Chanda
Affiliations:
Department of Computer Science, Barrackpore Rastraguru Surendranath College, Kolkata 700120, India;Electronics and Communication Sciences Unit, Indian Statistical Institute, Kolkata 700108, India
Venue:
Signal Processing
Year:
2006

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Abstract

This paper presents a simple yet efficient algorithm for multifocus image fusion, using a multiresolution signal decomposition scheme. The decomposition scheme is based on a nonlinear wavelet constructed with morphological operations. The analysis operators are constructed by morphological dilation combined with quadratic downsampling and the synthesis operators are constructed by morphological erosion combined with quadratic upsampling. A performance measure based on image gradients is used to evaluate the results. The proposed scheme has some interesting computational advantages as well.