Lab 6: Image Enhancement

Enhanced Image

This week's lab objectives were to download satellite images from USGS.  Once the data was downloaded, perform spatial enhancement in ArcMap and ERDAS.  The enhancements included high and low pass filters and Fourier Analysis.

To enhance the striped image, I used the Fourier Analysis tool to fill in the striped areas.  By using the Wedge tool and Low Pass button.  Once this was done, I sharpened the image with kernel size 3x3.  After sharpening the image, I used the convolution tool to apply a 3x3 low pass filter.  Once that filter was applied, I moved the image to ArcMap where I adjusted the histogram.

I enjoyed this lab because it was interesting to see how images can be improved and by various tools.  However, it was challenging to figure out how to continue to improve the image.  I did play around with various filters and tools.  It is clear a lot of experience and practice is needed to develop image enhancement skills.