Spatial Modeler Tutorials

WorldView-2 Tasseled Cap transformation

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The Tasseled Cap Transformation is a technique commonly used in land cover mapping or other classification projects. It takes the linear combination of satellite imagery bands and a specialized coefficient matrix to create a n-band image with the first 3 bands containing the majority of the useful information, similar to Principal Component Analysis. The first three bands created are generally held to represent Brightness, Greenness and Wetness. The coefficient matrix, which is unique to each imaging sensor, is based on image statistics and empirical observations.

WorldView-2 top-left, Brightness top-right, Greenness bottom-left, Wetness (and Shadows) bottom-right

For further information on the Tasselled Cap transformation please refer to these articles:

https://community.hexagongeospatial.com/t5/Spatial-Modeler-Tutorials/Sentinel-2-Tasseled-Cap-transfo...

https://community.hexagongeospatial.com/t5/Spatial-Modeler-Tutorials/Tasseled-Cap-Transformation-for...

...and the on-line Help:

https://hexagongeospatial.fluidtopics.net/reader/~P7L4c0T_d3papuwS98oGQ/ilRUrLFel2D0IQOevbNrAw

This article provides the Spatial Model for transforming WorldView-2 (and WorldView-3) 8-band imagery to the Tasseled Cap image space using the coefficients described in

Yarbrough, Lance & , Navulur & , Ravi. (2014). Presentation of the Kauth–Thomas transform for WorldView-2 reflectance data. Remote Sensing Letters. 5. 10.1080/2150704X.2014.885148.

https://www.researchgate.net/publication/263369074_Presentation_of_the_Kauth-Thomas_transform_for_Wo...

TasseledCap_Worldview_2_3_v16_5_1.gmdx

Input data should ideally have been corrected to Reflectance prior to input to this Spatial Model.

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Comments

Hello Ian,

do you know, if tasseled cap transformation is possible for PlanetScope Imagery?

Thanks

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Spatial Modeler Tutorials

WorldView-2 Tasseled Cap transformation

Brightness

Custom Matrix Input

Greenness

Linear Combination

Replace NoData With

Set Band Names

Spatial Modeler

Stack Total

String List

Tasseled Cap

TC

Wetness

WorldView

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