Davies, E., Nimmo-Smith, A., Nepstad, R., Nordam, T., Brönner, U., Steinvika, A., Sari, G., Masoudi, M., Liu, Z., Hélaouët, P., Cursons, K., Rau, M., Song, Y., Mostaani, A., Barstein, K., & Buscombe, D. PyOPIA: A Python Ocean Particle Image Analysis toolbox [Computer software]. https://github.com/sintef/pyopia