Image processing and data analysis with ERDAS IMAGINE

Cover......Page 1
Half Title......Page 2
Title Page......Page 4
Copyright Page......Page 5
Table of Contents......Page 6
Acknowledgments......Page 12
Authors......Page 14
Introduction and Overview......Page 16
Overview......Page 22
Acquiring Remotely Sensed Data......Page 25
Learning Objectives......Page 26
I. Finding and Downloading Data in EarthExplorer......Page 27
II. Automated Method of Importing EarthExplorer and Creating a Multi-Band, Layer Stack, Image in ERDAS IMAGINE......Page 48
III. Finding and Downloading Data in GloVis......Page 55
IV. Displaying Raster Data and Creating a Multi-Band Image in Esri ArcMap ArcGIS for Desktop......Page 60
V. Displaying Raster Data and Creating a Multi-Band Image in Quantum Geographic Information Systems......Page 66
Review Questions......Page 68
Overview......Page 70
Learning Objectives......Page 73
I. Obtaining Required Data in EarthExplorer......Page 74
II. ERDAS IMAGINE Graphic User Interface......Page 77
Exploring ERDAS Help Documents......Page 78
Setting Up Workspace Preferences......Page 80
Opening Images......Page 81
Band Combinations......Page 83
Create a False Color Composite Display Band Combination......Page 85
Opening Multiple Images......Page 87
Review Questions......Page 89
Overview......Page 90
Learning Objectives......Page 91
Display Images—Start Two Viewers (File | New | 2D View)......Page 92
Record Ground Control Points......Page 95
Compute Transformation Matrix......Page 101
Resample the Image......Page 102
Verify Rectification......Page 103
Display Images......Page 107
Ground Control Points......Page 108
Compute Transformation Matrix......Page 110
Resample the Image......Page 111
Verify Rectification......Page 112
Review Questions......Page 114
Image Preprocessing—Orthorectification......Page 116
Getting Started—Orthorectification......Page 117
Defining Camera Properties (Interior Orientation)......Page 120
Selecting Ground Control Points......Page 130
Creating an Orthophoto......Page 135
Viewing the Orthophoto......Page 136
Review Questions......Page 137
Overview......Page 138
Calculating Error in the X and Y Directions......Page 140
Total Root Mean Square Error......Page 141
Review Questions......Page 142
Overview......Page 144
Learning Objectives......Page 145
Loading Stretched and Non-Stretched Images......Page 146
Understanding the Stretch......Page 148
ERDAS IMAGINE and Lookup Tables (LUT Values)......Page 150
Adjusting the Stretch......Page 154
Making Finer Adjustments......Page 158
Review Questions......Page 167
Overview......Page 168
Spatial Image Enhancements......Page 169
Initiate a 3×3 Filter......Page 170
Open the Non-Direction Edge Filter Tool Dialog Window......Page 171
Review Questions......Page 172
Image Digitization and Interpretation Application......Page 174
Learning Objectives......Page 175
Polygon Creation......Page 176
Polyline Creation......Page 182
Manual Drawing......Page 185
Changing the Display Properties of the Digitizing Results......Page 186
Review Questions......Page 187
Overview......Page 188
Obtaining the Required Data (Review)......Page 190
Creating an Image Subset of the Cloud-Free Areas......Page 193
Initiating the Unsupervised Classification......Page 197
Unsupervised Classification Application Approach......Page 198
Creating a Reference Image Subset......Page 203
Assigning Class Categories to the Unsupervised Classification......Page 205
Compare......Page 209
II. Unsupervised Classification in Esri ArcMap ArcGIS for Desktop......Page 211
III. Unsupervised Classification in QGIS......Page 220
Review Questions......Page 227
Overview......Page 228
Learning Objectives......Page 230
Obtaining the Required Data (Review)......Page 231
Initiating the Supervised Classification......Page 233
Supervised Classification Application Approach—Creating a Signature File......Page 234
Tips for Creating the Supervised Classification......Page 239
Compare Using Swipe Tool......Page 240
Compare Using Image Difference Operation (Change Detection)......Page 242
Note on Image-To-Image Change Detection Comparisons......Page 249
Review Questions......Page 250
Overview......Page 252
Learning Objectives......Page 253
I. Feature Project Setup Procedure......Page 254
II. Feature Extraction Procedure......Page 258
Examine the Object-Oriented Classification in ERDAS IMAGINE......Page 266
Review Questions......Page 267
Overview......Page 270
Learning Objectives......Page 271
I. Create a Land-Only Image......Page 272
Initiating the Classification Procedure......Page 273
Create a Thematic Image Recode......Page 274
Create a Binary Image Mask to Remove Water......Page 277
Create a Normalized Difference Vegetation Index......Page 279
Classify the Normalized Difference Vegetation Index......Page 281
Create an Impervious Surface Map (Remove Vegetation)......Page 283
Classify the Impervious Surface Map......Page 285
Combining Output Layers in Model Maker......Page 287
Review Questions......Page 292
Overview......Page 294
Learning Objectives......Page 295
II. Recoding the Supervised Classification......Page 296
III. The Accuracy Assessment Procedure......Page 298
IV. Accuracy Assessment Report Generated from ERDAS IMAGINE......Page 305
Review Questions......Page 308
Learning Objectives......Page 310
Configuring the Stereo Analyst module......Page 311
Making a Digital Stereo Pair......Page 314
Creating Anaglyph Images for Export......Page 319
Delineating in Stereo......Page 321
Review Questions......Page 327
Appendix: Answer to Chapter Review Questions......Page 328
References......Page 342
Index......Page 344