Colour cluster analysis for pigment identification [PDF]
SPIE Proceedings, 2008 This paper presents image processing algorithms designed to analyse the colour CIE Lab histogram of high resolution images of paintings. Three algorithms are illustrated which attempt to identify colour clusters, cluster shapes due to shading and finally
Goodall, Simon, Martinez, Kirk
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Identification of Chromobacterium violaceum: Pigmented and Non-pigmented Strains [PDF]
Journal of General Microbiology, 1975 The classification and, therefore, identification of Chromobacterium violaceum has been based upon its ability to produce a violet pigment. Although the organism may yield non-pigmented variants when subcultured on artificial media, the isolation of non-pigmented strains from pathological tissues or from nature had not been reported.
R. SIVENDRA, H. S. LO, K. T. LIM
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Identification of black sturgeon caviar pigment as eumelanin
Food Chemistry, 2022 Reported herein is the purification of the pigment of black sturgeon caviar and its unambiguous identification as a typical eumelanin by means of chemical degradation coupled with electron paramagnetic resonance (EPR) evidence. HPLC and LC-MS analysis of oxidative degradation mixtures revealed the formation of pyrrole-2,3,5-tricarboxylic acid (PTCA), a
Panzella L. +6 more
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Automatic classification system of Raman spectra applied to pigments analysis [PDF]
, 2016 Raman spectroscopy is one of the few non-destructive techniques capable of identifying pigments in art works. Raman spectra contain powerful information that can be used to identify unknown compounds and their chemical structures.
González Vidal, Juan José +2 more
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Optimum spectral window for imaging of art with optical coherence tomography [PDF]
, 2013 Optical Coherence Tomography (OCT) has been shown to have potential for important applications in the field of art conservation and archaeology due to its ability to image subsurface microstructures non-invasively.
A Alex +27 more
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A holistic multimodal approach to the non-invasive analysis of watercolour paintings [PDF]
, 2015 A holistic approach using non-invasive multimodal imaging and spectroscopic techniques to study the materials (pigments, drawing materials and paper) and painting techniques of watercolour paintings is presented.
Bailey, K +6 more
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MALDI-TOF mass spectrometric identification of dyes and pigments [PDF]
Journal of the American Society for Mass Spectrometry, 2007 We have used MALDI-TOF mass spectrometry to characterize a selection of dyes from the Schweppe dye collection and pigments from the Tate Gallery collection. MALDI-TOF mass spectra of such samples are easily obtained and, through observation of both positive and negative ion spectra, provide a convenient, versatile method for dye characterization and ...
Soltzberg, L.J. +4 more
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Deepening inside the pictorial layers of Etruscan sarcophagus of Hasti Afunei: An innovative micro-sampling technique for Raman/SERS analyses [PDF]
, 2019 The Hasti Afunei sarcophagus is a large Etruscan urn, made up of two chalky alabaster monoliths. Dated from the last quarter of the third century BC, it was found in 1826 in the small town of Chiusi (Tuscany- Il Colle place) by a landowner, Pietro Bonci ...
Bianco, Armandodoriano +7 more
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Macroscale multimodal imaging reveals ancient painting production technology and the vogue in Greco-Roman Egypt. [PDF]
, 2017 Macroscale multimodal chemical imaging combining hyperspectral diffuse reflectance (400-2500 nm), luminescence (400-1000 nm), and X-ray fluorescence (XRF, 2 to 25 keV) data, is uniquely equipped for noninvasive characterization of heterogeneous complex ...
Delaney, John K +3 more
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Green Earth pigments aqueous dispersions: NMR relaxation rates dataset
Data in Brief, 2020 The data presented here are related to the research paper entitled “Green Earth pigments dispersions: water dynamics at the interfaces”. The nuclear magnetic resonance (NMR) relaxometry data are provided for various aqueous Green Earth (GE) pigments ...
Agathe Fanost +7 more
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