The elements within the picture are clearer in the panchromatic view. Individual elements are blurred in multispectral. Seeing the amount of red in the multispectral image indicates some sort of vegetation (algae?) in the water. You cannot see this in the panchromatic image. One thing confusing about this is that by looking at the panchromatic image, you might deduct that there are islands in the southern portion but are bright blue on the multispectral image. One would think this would be vegetation and therefore appear in red. More in depth study would be necessary to learn why this is blue and water is red.
Sunday, July 5, 2009
Spot Comparison
The elements within the picture are clearer in the panchromatic view. Individual elements are blurred in multispectral. Seeing the amount of red in the multispectral image indicates some sort of vegetation (algae?) in the water. You cannot see this in the panchromatic image. One thing confusing about this is that by looking at the panchromatic image, you might deduct that there are islands in the southern portion but are bright blue on the multispectral image. One would think this would be vegetation and therefore appear in red. More in depth study would be necessary to learn why this is blue and water is red.
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Think about what the spectral imagery is picking up in the water..you are on the right track.
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