Camera Spectral Sensitivity Database

Database

Camera Info

Camera spectral sensitivity functions relate scene radiance with captured RGB triplets. They are important for many computer vision tasks that use color information, such as multispectral imaging, and color constancy.

We create a database of 28 cameras covering a variety of types. The database contains the spectral sensitivity functions for 28 cameras, including professional DSLRs, point-and-shoot, industrial and mobile phone camera. We use a spectrometer PR655 from Photo Research Inc., a light source and monochrometer combined with an integrating sphere to do the measurement. Each measurement starts from wavelength 400nm to 720nm in an interval of 10nm. Measured Sensitivities are normalized to 1 for RGB channels seperately. The database is in the form of a text file. Each entry starts with camera name and follows by measured spectral sensitivities in red, green and blue channel.

Publications

Jun Jiang, Dengyu Liu, Jinwei Gu and Sabine Süsstrunk. What is the Space of Spectral Sensitivity Functions for Digital Color Cameras?. WACV 2013.

Jun Jiang, Dengyu Liu, Jinwei Gu and Sabine Süsstrunk.Supplementary Document (with proof and other experimental details).

Software

Code for recovering camera spectral sensitivity from a single image

This demo MATLAB code shows the recovery of camera spectral sensitivity with a regular color checker from a single picture under unknown daylight. An example image captured by a Canon 60D (CR2 RAW format) is included. The measured camera spectral sensitivity for Canon 60D and measured daylight are also included for comparison.

What is the Space of Spectral Sensitivity Functions for Digital Color Cameras