An algorithm for the automatic estimation of image orientation

Authors:
Mariusz Borawski;Dariusz Frejlichowski
Affiliations:
Faculty of Computer Science and Information Technology, West Pomeranian University of Technology, Szczecin, Szczecin, Poland;Faculty of Computer Science and Information Technology, West Pomeranian University of Technology, Szczecin, Szczecin, Poland
Venue:
MLDM'12 Proceedings of the 8th international conference on Machine Learning and Data Mining in Pattern Recognition
Year:
2012

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Abstract

The paper presents a new method for the determination of an image orientation -- the distinction between portrait- and landscape-oriented images. The algorithm can be applied to photographs taken outdoors. The approach is based on the use of a subpart of an image containing the sky. For determining the orientation the run of the standard deviation increment is analysed. It is obtained for the processed image and matched by means of correlation with the same characteristic of the sub-block of an image containing the sky.