关键词: 多聚焦图像, 小波变换, 匹配测度, 区域能量, 融合算法

Abstract: In the multi-focus image fusion algorithm based on wavelet transform, the quality of fused images is usually reduced due to the discrepancy between the adjacent pixels. According to the transform domain of the fusion rule, the eigenvalues of region energy were extracted by using the coefficients of the wavelet transform, and the global match degree was regarded as a way to determine the fusion rules. A new fusion algorithm based on region energy framework was proposed. To improve the quality of fused images, the consistency of the source of each wavelet component was detected. Finally, the algorithm was simulated in experiments. The results verify that this algorithm has better fusion effects than those based on weighted average, selecting the largest gray value and region energy.

Key words: multi-focus image, wavelet transform, match measure, region energy, fusion algorithm