Graph-based 3D Visualization of Color Content in Paintings

Visualization of the color content of a painting can help to better understand the style, compositional structure and material content. There are several ways to visualize colorimetric data from a color image. One option consists of using of 3D Virtual Reality to view colorimetric data in arbitrary orientation in a standard color space. In this paper we propose a new colorimetric visualization method. The originality of this method is that we include spatial organization of colors inside the painting. We can thus visualize information on color gradients that may appear in the painting using simple 3D primitives. We demonstrate the efficiency of our method on a colorimetrically calibrated image of an Italian Renaissance painting.

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