vhrharmonize 1.0.0

Automated open source library to preprocess satellite imagery

vhrharmonize: VHR Satellite Imagery Preprocessing Library

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Overview

vhrharmonize is an open-source Python library and CLI suite for preprocessing very high resolution (VHR) satellite imagery into analysis-ready products. Current supported end-to-end workflows: WorldView-3 B1 imagery. Additional providers and sensors (for example, Planet) will be added.

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Features

• Atmospheric correction workflows (Py6S default, FLAASH optional backend)
• RPC orthorectification (Orthority)
• Pansharpening (Orthority)
• Optional cloud masking (OmniCloudMask)
• Pairwise alignment (coregix)
• Relative Radiometric Normalization (spectralmatch)
• WorldView scene discovery, IMD parsing, and standardized metadata mapping
• CLI and library-first interfaces
• Automated SLURM processing for distributed High Performance Computing processing

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Installation

See docs/getting-started/installation.md for detailed installation instructions or simply install like this:

conda create -n vhrharmonize -c conda-forge py6s sixs gdal python=3.11
conda activate vhrharmonize
pip install vhrharmonize[defaults]

Getting Started

For an overview of using the library see docs/getting-started/quickstart.md. The CLI can be usd by passing in arguments from a yaml file like this one docs/configs/example.worldview.yml and running:

vhr-worldview --config-yaml example.worldview.yml

Or pass in arguments directly from the command line:

vhr-worldview \
  --input-file-glob "/data/worldview/**/*.TIF" \
  --output-dir ../../processed \
  --run-alignment \
  --alignment-fixed-image /data/reference.tif

For detailed arguments use:

vhr-worldview --help
vhr-fetch-modis-water-vapor --help
vhr-flaash --help
vhr-cloudmask-raster --help
vhr-pansharpen-orthos --help
vhr-align-image-pair --help
vhr-orthorectification --help
vhr-radiometric-normalization --help
vhr-py6s --help

To use on a super computer (slurm):

vhr-hpc prepare --config configs/example.hpc.yml # Create staged HPC/provider/slurm files
vhr-hpc upload --config configs/1.staged.hpc.yml # Upload required files
vhr-hpc start --config configs/1.staged.hpc.yml # Submit the job
vhr-hpc status --config configs/1.staged.hpc.yml # Print logs and job status
vhr-hpc download --config configs/1.staged.hpc.yml # Download declared outputs

# Other commands:
vhr-hpc stop --config configs/1.staged.hpc.yml # Cancel the submitted job
vhr-hpc close --config configs/1.staged.hpc.yml # Close the SSH multiplex connection

# Or all together:
vhr-hpc prepare --config configs/example.hpc.yml && vhr-hpc upload --config configs/1.staged.hpc.yml && vhr-hpc start --config configs/1.staged.hpc.yml && vhr-hpc status --config configs/1.staged.hpc.yml && vhr-hpc download --config configs/1.staged.hpc.yml

Contributing

We welcome all contributions! We appreciate any feedback, suggestions, or pull requests to improve this project. See docs/getting-started/contributing.md.

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License

This project is licensed under the MIT License. See LICENSE for details.