Multiple light source dataset for colour research

Abstract

We present a collection of 24 multiple object scenes recorded under 18 multiple light source illumination scenarios each. The illuminants are varying in dominant spectral colours, intensity and distance from the scene. We mainly address the realistic scenarios for evaluation of computational colour constancy algorithms, but also have aimed to make the data as general as possible for computational colour science and computer vision. Along with the images, we provide also spectral characteristics of the camera, light sources, and the objects and include pixel-by-pixel ground truth annotation of uniformly coloured object surfaces. The dataset is freely available at https://github.com/visillect/mls-dataset.

ProLab: A Perceptually Uniform Projective Color Coordinate System

“…To verify this model, let us take the MLSDCR (Multiple Light Source Dataset for Colour Research) dataset [62], which was captured using a Canon 5D Mark III camera. Among various scenes, the MLSDCR contains raw images of the colorchecker (see Fig.…”

“…Let us consider the transformation into the C x space. We use the transformation described in [62], from which the experimental data were obtained. In this work, the sensor color coordinate space is obtained via the simplest de-bayering algorithm, which employs an averaging of two mosaic Gelements and aggregates the average with a single R-and a single B-element.…”

ProLab: психофизически равномерная проективная система цветовых координат

“…Верифицируем эту модель на датасете MLSDCR (Multiple Light Source Dataset for Colour Research) [57], данные которого получены с фотоаппарата Canon 5D Mark III. Среди прочего, в MLSDCR есть необработанные ( raw ) изображения цветовой таблицы (см.…”

“…Перейдем теперь в пространство C x . Для этого воспользуемся преобразованием, приведенном в работе [57], откуда мы взяли экспериментальные данные. Для корректного перехода в C x необходимо учесть влияние процедуры дебайеринга.…”

ProLab: perceptually uniform projective colour coordinate system

“…To verify this model, let us take the MLSDCR (Multiple Light Source Dataset for Colour Research) dataset [57], which was captured using a Canon 5D Mark III camera. Among various scenes, MLSDCR contains raw images of the colorchecker (see Fig.…”