Image Segmentation Variants for Semi-Automated Quantitative Microstructural Analysis with ImageJ M. Lau, F. Morgenstern, R. Hübscher, A. Knospe, M. Herrmann, M. Döring, and W. Lippmann Practical Metallography 2020 57:11, 752-775© Carl Hanser Verlag GmbH & Co. KG ISSN 0032-678X