Authors:
V. Vurpillot
;
A. Legrand
and
A. Tremeau
Affiliation:
Ligiv, Universite Jean Monnet, France
Keyword(s):
Color calibration, spectral, sensitivity recovery, correction quality, reconstruction errors.
Related
Ontology
Subjects/Areas/Topics:
Computer Vision, Visualization and Computer Graphics
;
Image Formation and Preprocessing
;
Image Formation, Acquisition Devices and Sensors
;
Image Quality
Abstract:
Color calibrated acquisition is of strategic importance when high quality imaging is required, such as for work of art imaging. The aim of calibration is to correct raw acquired image for the various acquisition device signal deformation, such as noise, lighting uniformity, white balance and color deformation, due, for a great part, to camera spectral sensitivities. We first present reference color data computation obtained from camera’s spectral sensitivities and reflectance of reference patches, taken form Gretag MacBeth Color Chart DC. Then we give a color calibration method based on linear regression. We finally evaluate the quality of applied calibration and present some resulting calibrated images.