Analysis of image fusion methods using IKONOS imagery

Abstract

In this paper, efforts were made to merge IKONOS panchromatic image with multispectral images using wavelet transform, Intensity-Hue-Saturation (IHS), multiplicative, and Principal Components Analysis (PCA) methods. Numerical comparisons were made to evaluate the effect of different fusion methods on the distortion of spectral characteristics. Likewise, analysis was done on different image fusion results based on land surface materials. Finally, the results of the building outline extraction from fused images and panchromatic image were compared. They show that the extraction of the building boundary from the fused image is better than from the panchromatic image in terms of boundary connection.