International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B3. Istanbul 2004 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Average Value Standard Difference Entropy Average Grads Fractal Dimensions 
IKONOS panchromatic image 55.003892 47.292947 6.971110 15.709922 2.950696 
IKONOS multi-spectral image 54.959930 51.830456 12.012438 4.838858 2.881100 
direct power average 52.168844 47.320513 11.948496 8.952973 2.915515 
high pass filter 52.168796 47.320568 11.948493 8.952944 2.915515 
IHS transform 54.500514 48.905712 11.558431 15.861264 2.948176 
discrete wavelet transform 54.799508 54.022043 11.930620 15.345459 2.933445 
discrete wavelet packet transform 62.241697 53.722484 12.233056 15.819710 2.935812 
complex wavelet transform 62.211379 54.899634 12.175444 18.535382 2.949563 
  
  
  
Table 2. Statistics of quality indexes for evaluating the images in fig. 9 and fig. 10 
  
Figure 7. Left: SPOT panchromatic image, right: Landsat7 TM 
; ; Sat ctl | 
multi-spectral image composed of 4", 5" and 7" bands 
Figure 9. Left: IKONOS panchromatic image, right: IKONOS 
multi-spectral image 
  
Figure 8. Fused images: (a) image fused by direct power 
average, (b) image fused by high pass filter, (c) image fused by 
Intensive-Hue-Saturation (IHS) transform, (d) image fused by 
discrete wavelet transform, (e) image fused by discrete wavelet 
packet transform, (f) image fused by complex wavelet transform 
534 
Figure 10. Fused images: (a) image fused by direct power 
average, (b) image fused by high pass filter, (c) image fused by 
Intensive-Hue-Saturation (IHS) transform, (d) image fused by 
discrete wavelet transform, (e) image fused by discrete wavelet 
packet transform, (f) image fused by complex wavelet transform 
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