A DATA SET FOR FUZZY COLOUR NAMING
INTRODUCTION

The data set provided in this website was obtained from a colour-naming experiment. In this experiment, we have used a scoring method to collect a set of judgements adequate for the fuzzy modellling of the colour-naming task. The data set is composed of 387 colour reflectances, their CIELab and Munsell values, and the corresponding judgements provided by the subjects in the experiment. These judgements are the membership values to the eleven basic colour categories proposed by Berlin and Kay.

This data set has been published on:
Robert Benavente, Maria Vanrell, and Ramon Baldrich. A Data Set for Fuzzy Colour Naming. Color Research and Application, 31(1): 48-56, 2006.


EXPERIMENTAL CONDITIONS

Subjects

Subjects: 5 male and 5 female
Age: 24-30
All the subjects were tested with the Ishihara and Farnsworth D-15 tests


Stimuli

387 colour samples (36 achromatic and 351 chromatic)

Apparatus

The experiment was developed in a dark room.
Samples presented in a booth illuminated from the top.
Illuminant: CCT of 5955K and luminance of 150 cd/m2


Procedure

Subjects were instructed to use only the eleven basic colour terms: white, black, red, blue, green, yellow, purple, pink, orange, brown and grey.
For each sample, 10 points were distributed among the 11 colour names as a certainty value.
Samples were presented one at a time, twice each, in random order (reverse was used in the second trial).
Total observations: 7740.


DATA

Reflectances

File format: Each line of the file is one of the 387 reflectances sampled from 380nm to 780nm (step: 4nm)
Reflectances_380_780_4.txt

CIELab and Munsell Values

File format: L a b Hue Value Chroma
Samples.txt

Membership Values

File format: L a b m_red m_orange m_brown m_yellow m_green m_blue m_purple m_pink m_white m_grey m_black
MembershipValues_CIELab.txt

File format: Hue Value Chroma m_red m_orange m_brown m_yellow m_green m_blue m_purple m_pink m_white m_grey m_black
MembershipValues_Munsell.txt

Membership Values

File format: R G B m_red m_orange m_brown m_yellow m_green m_blue m_purple m_pink m_white m_grey m_black
MembershipValues_sRGB.txt
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