Discrete geometry and mathematical morphology : second international joint conference DGMM 2022 Strasbourg France October 24 27 2022 proceedings This book constitutes the proceedings of the Second IAPR International Conference on Discrete Geometry and Mathematical Morphology DGMM 2022 which was held during October 24 27 2022 in Strasbourg France. The 33 papers included in this volume were carefully reviewed and selected from 45 submissions. They were organized in topical sections as follows: discrete and combinatorial topology; discrete tomography and inverse problems; multivariate and PDE based mathematical morphology morphological filtering; hierarchical and Graph Based Models Analysis and Segmentation; discrete geometry models transforms and visualization; learning based morphology to Mathematical Morphology; and distance transform. The book also contains 3 invited keynote papers