GIS 4035: Module 6 - "Spatial Enhancement"

This week continued our introduction to Erdas Imagine with some practice using image filters on raster imagery. This included running various high and low pass filters on an image, as well as edge enhancing and other filters. The map below was produced as an attempt to rectify data errors produced on images from Landsat 7, which sometimes produces bands across an image without any data. A fourier transform was used to reduce the banding somewhat, and then a sharpening filter was run on the resulting image in order to improve the image resolution. The results were not great, but the banding was somewhat reduced compared to the original image.

Moderately corrected banding of Landsat 7 image