This book constitutes the thoroughly refereed proceedings of the 12th International Conference on Image Analysis and Recognition,
ICIAR 2015, held in Niagara Falls, ON, Canada, in July 2015. The 55 revised full papers and 5 short papers presented were
carefully reviewed and selected from 80 submissions. The papers are organized in the following topical sections: image quality
assessment; image enhancement; image segmentation, registration and analysis; image coding, compression and encryption; dimensionality
reduction and classification; biometrics; face description, detection and recognition; human activity recognition; robotics
and 3D vision; medical image analysis; and applications.