Abstract
Details of principal component analysis and spatial frequency are presented. Two image fusion architectures are developed to fuse multi focused images and their performance is compared. In first architecture source images to be fused are considered as whole in the fusion process. In second architecture the source images to be fused are divided into blocks and then used in the fusion process. Overall SF shows slightly better performance. Block based image fusion scheme (second architecture) shows superior performance. This architecture is very simple and can be used in real time applications.
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