基于DCT域纹理特征的多聚焦图像融合

doi:10.3969/j.issn.0255-8297.2015.06.006

Journal of Applied Sciences ›› 2015, Vol. 33 ›› Issue (6): 628-636.doi: 10.3969/j.issn.0255-8297.2015.06.006

• Special Issue: Information Security of Multimedia Contents • Previous Articles Next Articles

Multi-focus Image Fusion Based on Texture Features in DCT Domain

TANG Zhen-hua^1,2, LIANG Cong¹, OU Cheng³, HUANG Xu-fang¹, QIN Tuan-fa^1,2

1. School of Computer and Electronics Information, Guangxi University, Nanning 530004, China;
2. Guangxi Colleges and Universities Key Laboratory of Multimedia Communications and Information Processing, Guangxi University, Nanning 530004, China;
3. China Tower Guangxi Branch Company, Nanning 530007, China

Received:2015-09-16 Revised:2015-11-10 Online:2015-11-30 Published:2015-11-30

Abstract

Abstract: Exiting multi-focus image fusion methods based on discrete cosine transform (DCT) domain cause blocking effects and artifacts in the fused images. To address this problem, an image fusion algorithm concentrated on texture features in the DCT domain is proposed. The proposed method separates each 8×8 DCT block into several texture regions having various directivity of energy distribution in the source images. Similarity of the frequency spectra for the two texture regions are calculated. The part of the fused image is obtained by selecting the one with more energy, or using the weighted result. Experimental results show that the proposed algorithm can effectively reduce blocking effects and artifacts. Compared with exiting approaches in DCT domain, the proposed algorithm can provide fused images with better subjective quality.

Key words: multi-focus, image fusion, DCT domain, texture features

CLC Number:

TP391

TANG Zhen-hua, LIANG Cong, OU Cheng, HUANG Xu-fang, QIN Tuan-fa. Multi-focus Image Fusion Based on Texture Features in DCT Domain[J]. Journal of Applied Sciences, 2015, 33(6): 628-636.

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Multi-focus Image Fusion Based on Texture Features in DCT Domain

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