Questionable Miro Painting

MacroDIS was used to analyze a lithographic print, possibly a forgery signed as "Miro" and numbered 11/15. CyberDIS has generated a true color image by combining images acquired at 450 nm, 550 nm, and 620 nm. 132 separate features were selected for analyzing the visible spectrum of the pigments found in the print. Features were sequentially sorted and displayed as follows: 1) maximum absorption sort, 2) full scale display, 3) similarity sort, 4) resize Contour Plot to the 32 red features, and 5) display as the first derivative. A feature is highlighted in the largest red blob at the lower right in the litho. We see from this analysis that all of the red pigment used in this artwork has an inflection point at 590 nm, which could be compared with an authentic Miro litho to validate whether or not this is a known dye that Miro used. By moving the scrollbar or selecting other features, similar spectral analyses can be performed on the blue, green, orange, and black pigments present in the litho. Please note that the litho was analyzed noninvasively, not even requiring removal from the cover glass.

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