This book constitutes the thoroughly refereed proceedings of the 20th IAPR International
Conference on Discrete Geometry for Computer Imagery DGCI 2017 held in Vienna Austria in
September 2017. The 28 revised full papers presented together with 3 invited talks were
carefully selected from 36 submissions. The papers are organized in topical sections on
geometric transforms discrete tomography discrete modeling and visualization morphological
analysis discrete shape representation recognition and analysis discrete and combinatorial
topology discrete models and tools models for discrete geometry.
