Image annotation for adaptive enhancement of uncalibrated color images

  • Authors:
  • Claudio Cusano;Francesca Gasparini;Raimondo Schettini

  • Affiliations:
  • Dipartimento di Informatica Sistemistica e Comunicazione, Università degli studi di Milano-Bicocca, Milano, Italy;Dipartimento di Informatica Sistemistica e Comunicazione, Università degli studi di Milano-Bicocca, Milano, Italy;Dipartimento di Informatica Sistemistica e Comunicazione, Università degli studi di Milano-Bicocca, Milano, Italy

  • Venue:
  • VISUAL'05 Proceedings of the 8th international conference on Visual Information and Information Systems
  • Year:
  • 2005

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Abstract

The paper describes an innovative image annotation tool, based on a multi-class Support Vector Machine, for classifying image pixels in one of seven classes – sky, skin, vegetation, snow, water, ground, and man-made structures – or as unknown. These visual categories mirror high-level human perception, permitting the design of intuitive and effective color and contrast enhancement strategies. As a pre-processing step, a smart color balancing algorithm is applied, making the overall procedure suitable for uncalibrated images, such as images acquired by unknown systems under unknown lighting conditions.