Module 6 - Image Preprocessing 1: Spatial Enhancement and Radiometric Correction

Learning objectives for this lab include:

• Spatial Enhancements
• Pan-sharpening
• Spatial filtering
• Skills demonstrated in this lab include:

• Download and import satellite imagery
• Perform spatial enhancements in ArcMap and ERDAS
• Utilize the Fourier Transformation function

For this lab we used ERDAS Imagine to modify data. There is a file called l7_striping.img.

I'm not aware of metadata explaining exactly what it is depicting, but it's in UTM zone 16N. Datum is WGS 84.  Usually it is related to West Florida - this makes sense since Tennessee is in zone 17N, and West Florida is West of (Eastern) Tennessee.

I want to include a "before" photo - in ERDAS I saved the file as a "JP2" and then opened the JP2 in Corel Draw that happened to be the one suggested program that could handle a "JPEG 2000" file.

"Before" Image of Landsat 4-5 TM data with swaths

Map 1: "After" image enhancement.  I had wanted to put a text box describing this but ended up having formatting problems. Will need to explore this further!

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