In this lab you will learn how to remove noises on images using Fourier Transform technique and integrate (fuse) images from multiple sensors using several image merge/transformation techniques.
For this lab, you will have to copy the following
files to your workspace in the C:\users folder. You can find these files in I:\Students\Instructors\Geoffrey_Duh\GEOG4581\Lab5.
TM_1.img
QuickBird_Pyramids_Pan.img
QuickBird_Pyramids_MS.img
flood_tm147_radar.img
Before you start this three parts lab, read pages 181 to 189 (on Wavelet Resolution Merge) and pages 240 to 242 (on Merging Radar with VIS/IR Imagery) of the ERDAS Field Guide (FieldGuide9_1.pdf)
Part I. Fourier Transform Editor
1. Complete the tutorial exercise on pages 235 to 255 in the Tour Guide (TourGuide9_1.pdf).
2. Create a fft for band 2 of the TM_1.img and use the Fourier Transform Editor tool to remove the banding (striping) on band 2. Produce pictures of the original band 2 image, the original fft of band 2, the edited fft, and the final band 2 image. Make sure you clearly annotate the pictures and submit them with your report.
Part II. Resolution Merge of QuickBird Pan and MS Images
1. Complete the tutorial exercise on pages 282 to 285 in the Tour Guide (TourGuide9_1.pdf).
2. Use the Layer Info tool to complete the table below.
|
Image |
#
of band(s) |
Width |
Height |
Pixel
Size X |
Pixel
Sixe Y |
|
Quickbird_Pyramids_Pan.img |
|
|
|
|
|
|
Quickbird_Pyramids_MS.img |
|
|
|
|
|
|
The merged image |
|
|
|
|
|
3. Produce pictures of a blowup “swiped” Pan and MS images in one viewer and a blowup swiped merged and MS images. The pictures must cover both sides of the swipe position. Make sure you clearly annotate the pictures and submit them with your report.
Part III. Sensor Merge of TM and Radar Images
1. Complete the tutorial exercise on pages 683 (starting from Apply Sensor Merge) to 687 in the Tour Guide (TourGuide9_1.pdf).
2. Produce pictures of the original TM image, the radar image, and the merged image. Make sure you clearly annotate the pictures and submit them with your report.
3. Write one paragraph explaining IHS sensor merge method and what images you merged in this exercise.