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Nature's laws..but technology can give them back Van Gogh's,Rembrandt's colours at the Rijksmuseum's Amsterdam Symposiums.

To arrive an artist at an artificially creation need to calculate with any deagree of precision a lot of details to release stringly the need-to-know basis,because he is not working and is not making art with his hand, eye and material but with his mind.
(Polyclitos 5th century.BCE).
 'Nature environment' as he called also artist's hand, eyes and material, is for the artist 'technical obstacles' that put him against the nature in battle try and use the power of his mind and thoughts in combination with respect to nature.
Vincent Van Gogh's and Rembrandt's creations are the result of their courage, strengh and respect to the nature. 
But the only is that nature is always following its rulles,regulations and laws.
'Nature environment' (hand-eye-material) third part material- colour,ink,stone,wood,metal etc- or 'Technical obstacles' which are following their nature's instructions, give may be the answer to the chemists, computer scientists, conservators, art historians and researchers that trying to figure out why this has happend and what van Gogh's and Rembrandt's paintings have become discoloured.
(Text/photography Mersina Alimpoutaki-Joustra.
All rights reserved).
                           Rijksmuseum Amsterdam. Science4Arts. Symposiums.The Netrherlands.
                                      Vincent Van Gogh.Bedroom in Arles.1888.
                                             The Rijksmuseum Amsterdam.
Van Gogh's and Rembrandt's colours are 'changed' but the modern technology can give them back the lost third part of their victory according to the researchers that are examining the discolaration.
                                             Rembrandt's Colours Examination 





 'REVICO project: Reassessing Vincent van Gogh's use of color using digital recostructions. 
The REVICO project is a collaboration between the Van Gogh Museum(VGM), the Cultural Heritage Agency of the Netherlands (RCE), Tilburg Univercity and the Delft University of Tegnology.
AKZO-NOBEL has been participating in the project since the second year.
At the main point of the REVIGO project'..How can digital methods contribute to create virtual reconsructions of drawings and paintings based on integrated knowledge on art history, art technology and colour science?,
The answer is:'..Vincent van Gogh's paintings, drawings and letters have significantly changed in appearance due to colour degradation(process that makes the colour less strengh). 
Digital reconstructions that rely firmly on material-technical studies of the colours used helped to envisage how the artist's works may have looked at the time of creation, prior to the effects of discolouration.
Using advanced digital methods from the domains of image processing and machine learning, the virtual reconstructions were rendered by combining multiple sources of information.
A number of carefully chosen case examples did form the basis of this study. Although starting with Van Gogh, the interdisciplinary REVIGO project pertains in particular to the broader scop of 19th century artworks, as well as to the conservation and restoration of drawings and paintings in general.

The project employs a multidisciplinary approach in which art historians, conservators, heritage scientists, colour scientists and computer scientists collaborate a. Acquire knowledge about the ageing process in artworks(drawing from material science, heritage science and art history.
b.Investigate and evaluate machine learning and image processing algorithms suitable for knowlegde intergration and visualisation.
c.develop digital methods to integrate and visualise the results of specific artworks. The project team is subdivided into a group that studies ageing in drawings and one that studies ageing in paintings.

                                      The Rijksmuseum Amsterdam.Symposiums.








                     Rembrandt.The Jewish Bride,c.1665,canvas.Rijksmuseum Amsterdam.

                      The Rijksmuseum' Amsterdam Symposiums 2016-2017. The Netherlands.









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