Anders Knudby GEG3105 Slide 10 Source SEOS Other Band Math

# Anders knudby geg3105 slide 10 source seos other band

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2018-01-05 Anders Knudby, GEG3105 Slide 10 Source: SEOS

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Other ‘Band Math’ visualizations Landsat 8: 10 / 11 2018-01-05 Anders Knudby, GEG3105 Slide 11
The ‘Tasseled Cap’ transformation Healthy vegetation Dry vegetation Wet soil Dry soil 2018-01-05 Anders Knudby, GEG3105 Slide 12 Source: San Jose State University

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La transformation ‘Tasseled Cap’ Brightness Greenness Wetness 2018-01-05 Anders Knudby, GEG3105 Slide 13 Source: San Jose State University
Principal Component Analysis PCA decorrelates the bands in a multispectral image, and shifts the information content in all bands toward the first principal components. 2018-01-05 Anders Knudby, GEG3105 Slide 14

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Band correlations Band 1 2018-01-05 Anders Knudby, GEG3105 Slide 15
Landsat image from Vancouver True-colour image PC1, PC2, PC3 2018-01-05 Anders Knudby, GEG3105 Slide 16

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Landsat image from Vancouver PC1 PC2 2018-01-05 Anders Knudby, GEG3105 Slide 17
Landsat image from Vancouver PC3 PC4 2018-01-05 Anders Knudby, GEG3105 Slide 18

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Principal Components Analysis Why would we ever want to calculate Principal Components? What do you lose when working with Principal Components? 2018-01-05 Anders Knudby, GEG3105 Slide 19
Pan-sharpening 2018-01-05 Anders Knudby, GEG3105 Slide 20 + =

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Pan-sharpening 2018-01-05 Anders Knudby, GEG3105 Slide 21 Generic procedure for pan-sharpening: 1) Up-sample colour bands 2) Transform colour space from RGB to HSV Source: Leadwerks
Generic procedure for pan-sharpening: 3) Match “Value” (or Intensity) of colour bands to pan band 4) Substitute pan band into “Value” of colour bands Pan-sharpening 2018-01-05 Anders Knudby, GEG3105 Slide 22

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Generic procedure for pan-sharpening: 5) Transform colour space back from HSV (or HSI) to RGB Pan-sharpening 2018-01-05 Anders Knudby, GEG3105 Slide 23
Pan-sharpening 2018-01-05 Anders Knudby, GEG3105 Slide 24 Source: Earth Imaging Journal
• Fall '19
• Singular value decomposition, Anders Knudby

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