International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part Bl. Istanbul 2004 
  
   
c)3pass d)4pass 
n. 
Figure 7 Reversed transformed image by wavelet 
transformation each step. 
£x aa 
Figure 8 Result image by Wavelet method 
  
   
    
obtained by step, rough images of high resolution images were 
replaced by those of low resolution images. Next, final images 
were obtained by reverse transformation to original sizes using 
rough images of low resolution images and precise images of 
high resolution images. 
As shown in the figure, as transformation us processed by 
step, spatial resolution was increased. Figure 8 and 9 show 
fusion images from a developed fused program and images 
using Mathlab library. As comparing two images, images using 
Mathlab showed slight diffusion in terms of colors and two 
images had slight differences even in sharpness. 
5.2 Image Analysis 
5.2.1 Resolution Analysis 
Partial areas were enlarged to compare resolutions between 
Wavelet and IHS fusion method. 
Mountain and river areas were enlarged for comparison. 
Linear structure was remarkably appeared in river areas. While 
  
  
b) Mathlab.method 
Figure 10 Part of image by each method. 
(linear structure & Mt.) 
(residential area & bridge) 
   
  
   
   
   
   
   
   
    
   
   
   
    
   
  
     
    
   
   
   
      
  
   
   
   
   
    
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5.2.3 
Figi