Photo Interpretation and Remote Sensing - Mod 6
This week we used radiometric and spatial enhancements to enhance an image and reduce striping.
The first step was to perform a Fourier transformation in order to run some of the Fourier tools in a Fourier Transform Editor. Prior to running this step the image was just a big white blur with a few black splotches until it was zoomed to 1:150000. After running the Fourier Transform Editor tools it was a complete image that could be zoomed to its extent, but it still had striping. I tested numerous tools trying to find that right combination that would lessen the stripes without diminishing the clarity of the image but nothing I tried work. Finally I settle on an image that still had all the stripes it came out of the Fourier Transform Editor with, but the clearest image I had managed to achieve. The tools I used to accomplish this after the Fourier Transform Editor were the Convolution tools Sharpen and Haze Reduction in ERDAS Imagine and in ArcMap I used the Spatial Analyst Focal Statistics tool with a width and height of 3 and a Statistics type of Range.
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