Color Calibration for a Dermatological Video Camera System

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, 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.

• Type: Conference
• Year: 2004
• Where: ICPR
• Authors: Costantino Grana, Giovanni Pellacani, Stefania Seidenari, Rita Cucchiara
• Keywords: Computer Vision, ICPR 2004, Non Standard Rgb, Non-uniform Illumination Effects, XYZ Conversion Matrix