In this work, we describe a technique to calibrate images for skin analysis in dermatology. Using a common reference we correct non-uniform illumination effects, give an estimation of the gamma correction and produce a XYZ conversion matrix. The final result is then reverted to a non standard RGB color space, built from the instrument images. In this way different instruments behave uniformly allowing colorimetric characterization, while improving the results of common algorithms. The proposed techniques should be the initial support for a distributed framework where dermatological images can be consistently compared.
Color Calibration for a Dermatological Video Camera System / Grana, Costantino; Pellacani, Giovanni; Seidenari, Stefania; Cucchiara, Rita. - 3:(2004), pp. 798-801. (Intervento presentato al convegno 17th International Conference on Pattern Recognition tenutosi a Cambridge, UK).
Color Calibration for a Dermatological Video Camera System
GRANA, Costantino;PELLACANI, Giovanni;CUCCHIARA, Rita
2004
Abstract
In this work, we describe a technique to calibrate images for skin analysis in dermatology. Using a common reference we correct non-uniform illumination effects, give an estimation of the gamma correction and produce a XYZ conversion matrix. The final result is then reverted to a non standard RGB color space, built from the instrument images. In this way different instruments behave uniformly allowing colorimetric characterization, while improving the results of common algorithms. The proposed techniques should be the initial support for a distributed framework where dermatological images can be consistently compared.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
