The CRS Colour Toolbox for MATLAB provides a set of functions and graphical tools for colour vision science. The toolbox was developed in collaboration with Dr Caterina Ripamonti and contains the essential tools to simplify measuring, calculating, manipulating and displaying calibrated colour visual stimuli.
The CRS Colour Toolbox for MATLAB provides a set of functions and graphical tools for colour vision science. The toolbox was developed in collaboration with Dr Caterina Ripamonti (CVRL, UCL, UK) and contains the essential tools to simplify measuring, calculating, manipulating and displaying calibrated colour visual stimuli.
SpectroCAL Measurement Control Panel
The Colour Toolbox uses the SpectroCAL to accurately measure the spectral characteristics of a computer display and subsequently enable the specification visual stimuli in colorimetric and physiologically based colour spaces.
Display Device Calibration, Transfer Function Measurement and Characterisation
A new set of measurement and curve-fitting functions are provided that implement a robust and accurate gamma correction procedure for the ViSaGe and Bits# devices using ColorCAL MKII and SpectroCAL. Unlike purely photometric and colorimetric solutions, the two devices work together to characterise the properties of the display over its full range. This means inaccurate measurements due to poorly implemented photopic filters are avoided. The toolbox implements a new set of cone sensitivity based colour spaces especially designed for vision science. There is even support for the new CIE 2007 functions.
Colour Space Calculation, Manipulation and Translation Routines
A complete range of colorimetric and physiologically based colour spaces can be calculated and visualised using the Colour Space Explorer and the spectral radiance measurements provided by SpectroCAL.
Toolbox of MATLAB Routines for Colour Vision Research
An entire suite of colour space calculation, manipulation, visualisation and transformation routines are supplied as MATLAB M files. Full source code and documentation is provided allowing you to verify the veracity of our algorithms.
Additional routines are supplied for use with the ViSaGe system to make it simple to define and display stimuli in colorimetric (perceptual) and retinal (physiological) measurements. A demo script is provided to show how to implement a cone-isolating stimulus using silent substitution.