pyshepseg

https://www.pyshepseg.org

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pyshepseg is a Python implementation of the Shepherd et al. (2019) image segmentation algorithm for...

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### Install pyshepseg from source with pip

Source: https://www.pyshepseg.org

Install the package from the source directory using pip as a wrapper around setup.py. Requires scikit-learn and numba to be available.

```bash
pip install .

```

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### Install pyshepseg via conda-forge

Source: https://www.pyshepseg.org

Commands to create a new Conda environment named 'mysegenv' with pyshepseg installed from conda-forge. Run these after installing Conda.

```bash
conda config --add channels conda-forge
conda config --set channel_priority strict
conda create -n mysegenv pyshepseg
conda activate mysegenv

```

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### Basic Shepherd Segmentation with pyshepseg

Source: https://www.pyshepseg.org

Shows how to import pyshepseg and call doShepherdSegmentation on a multi-band image array. Requires a null value for null pixels; incorrect null handling can degrade segmentation quality.

```python
from pyshepseg import shepseg

# Read in a multi-band image as a single array, img,
# of shape (nBands, nRows, nCols).
# Ensure that any null pixels are all set to a known
# null value in all bands. Failure to correctly identify
# null pixels can result in a poorer quality segmentation.

segRes = shepseg.doShepherdSegmentation(img, imgNullVal=nullVal)

```

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