├── .gitignore ├── assets ├── notebook_1_image.png ├── notebook_2_image.png ├── notebook_3_image.png ├── notebook_4_image.png └── datarock_logo_2_rect.jpeg └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | # ignore the data directory 2 | *.qgz 3 | data/ 4 | !.gitignore -------------------------------------------------------------------------------- /assets/notebook_1_image.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Solve-Geosolutions/gsq_hymap/master/assets/notebook_1_image.png -------------------------------------------------------------------------------- /assets/notebook_2_image.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Solve-Geosolutions/gsq_hymap/master/assets/notebook_2_image.png -------------------------------------------------------------------------------- /assets/notebook_3_image.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Solve-Geosolutions/gsq_hymap/master/assets/notebook_3_image.png -------------------------------------------------------------------------------- /assets/notebook_4_image.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Solve-Geosolutions/gsq_hymap/master/assets/notebook_4_image.png -------------------------------------------------------------------------------- /assets/datarock_logo_2_rect.jpeg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Solve-Geosolutions/gsq_hymap/master/assets/datarock_logo_2_rect.jpeg -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ![Datarock](assets/datarock_logo_2_rect.jpeg) 2 | 3 | # Queensland HyMap Data Sets 4 | 5 | This repository is complimentary to a Datarock applied science [blogpost](https://www.datarock.com.au/blog/hyperspectral-processing) that seeks to demonstrate some fully open source methods for processing, manipulating and analysing hyperspectral data sets with relatively modest computing resources. 6 | 7 | ## Notebooks 8 | 9 | ### [**01_apply_geocorrections_and_mosaic.ipynb**](notebooks/01_apply_geocorrections_and_mosaic.ipynb) 10 | 11 | This notebok was used to apply geometry lookup tables to raw reflectance data cubes in order to generate a georeferenced hyperspectral mosaic in ENVI grid format. 12 | 13 | ![01_convex_hull_computation.ipynb](assets/notebook_1_image.png) 14 | 15 | ### [**02_vegetation_identification.ipynb**](notebooks/02_vegetation_identification.ipynb) 16 | 17 | A notebook used to derive normalised difference vegetation index (NDVI) and a crude vegetation mask from the georeferenced hyperspectral mosaic. A memory efficient native ENVI blockwindow approach was used for computation. 18 | 19 | ![02_convex_hull_computation.ipynb](assets/notebook_2_image.png) 20 | 21 | ### [**03_convex_hull_computation.ipynb**](notebooks/03_convex_hull_computation.ipynb) 22 | 23 | A notebook used to apply a pixel-wise convex hull continuum removal to the hyperspectral data mosaic. 24 | 25 | ![03_convex_hull_computation.ipynb](assets/notebook_3_image.png) 26 | 27 | 28 | ### [**04_white_mica_abundance.ipynb**](notebooks/04_white_mica_abundance.ipynb) 29 | 30 | A simplistic white mica feature depth and feature position extraction workflow using quadratic functions fitted to a feature window. 31 | 32 | ![04_convex_hull_computation.ipynb](assets/notebook_4_image.png) 33 | 34 | ## Data 35 | 36 | All data presented in this repository are taken from the Dugald Block D HyMap survey supplied by the Geological Survey of Queensland. The GSQ hosts a number of spectral products derived from this and other HyMap™ surveys, which can be downloaded [**here**](https://geoscience.data.qld.gov.au/data/dataset/?type=spectral), however access to the raw spectral data requires temporary AWS links for which the reader is advised to contact [**GSQ**](https://www.resources.qld.gov.au/?contact=gsq) directly. --------------------------------------------------------------------------------