The paper describes a method for detecting a color cast (i.e. a superimposed dominant color) in a digital image without any a priori knowledge of its semantic content. The color gamut of the image is first mapped in the CIELab color space. The color distribution of the whole image and of the so-called Near Neutral Objects (NNO) is then investigated using statistical tools, to determine the presence of a cast. The boundaries of the near neutral objects in the color space are set adaptively by the algorithm on the basis of a preliminary analysis of the image color gamut. The method we propose has been tuned and successfully tested on a large data set of images, downloaded from personal web-pages or acquired using various digital and traditional cameras

Gasparini, F., Schettini, R., Gallina, P. (2002). An Innovative Algorithm for Cast Detection. In Proceedings of Conference on Internet Imaging III (pp.280-286). SPIE-INT SOC OPTICAL ENGINEERING [10.1117/12.452683].

An Innovative Algorithm for Cast Detection

GASPARINI, FRANCESCA;SCHETTINI, RAIMONDO;
2002

Abstract

The paper describes a method for detecting a color cast (i.e. a superimposed dominant color) in a digital image without any a priori knowledge of its semantic content. The color gamut of the image is first mapped in the CIELab color space. The color distribution of the whole image and of the so-called Near Neutral Objects (NNO) is then investigated using statistical tools, to determine the presence of a cast. The boundaries of the near neutral objects in the color space are set adaptively by the algorithm on the basis of a preliminary analysis of the image color gamut. The method we propose has been tuned and successfully tested on a large data set of images, downloaded from personal web-pages or acquired using various digital and traditional cameras
slide + paper
innovative, algorithm, cast, detection
English
Conference on Internet Imaging III 21-23 January
2002
Proceedings of Conference on Internet Imaging III
0-8194-4412-X
2002
4672
280
286
none
Gasparini, F., Schettini, R., Gallina, P. (2002). An Innovative Algorithm for Cast Detection. In Proceedings of Conference on Internet Imaging III (pp.280-286). SPIE-INT SOC OPTICAL ENGINEERING [10.1117/12.452683].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/53648
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