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Multispectral imaging: results

Introduction | Procedure | Results 1 | 2 | 3

The papyri selected for the multispectral imaging trials included both published and unpublished pieces. One of the published items was P. Oxy. XV 1790, containing Ibycus' Ode to Polycrates (description). Conventional infra-red photography had already brought out traces of writing in the upper and lower margins and in the space below column iii: J.P. Barron describes 'three separate series of offsets, the result either of the accidental laying of another sheet of writing face-down upon the first before its ink was dry, or of the rolling of papyri face to face in circumstances in which they then became wet and exchanged their ink' (Bulletin of the Institute of Classical Studies 16, 1969, 119-20). Using MSI equipment, the precise point in the spectrum at which these ink traces showed up most clearly was quickly located.

The papyrus as it appears to the naked eye. Move the mouse pointer over the image to display the text revealed by multispectral imaging in the infra-red region. Click here for a larger version of the infra-red image. For further options, see the instructions below.

USING THE FLASH PRESENTATION

Advanced options, including 'zoom' and 'rewind', are available from the Flash menu. To bring up the menu (shown here), click on the image with the right-hand mouse button (Windows users) or click on the image with the mouse button while holding down the 'ctrl'/'control' key (Macintosh users).

Once you have zoomed in, you can move around inside the image by clicking the mouse button (the left-hand mouse button for Windows users) and moving the mouse in the direction desired while keeping the button depressed. (You may first need to select 'Forward' from the Flash menu, as described above.)