it is several years now that I am working on a vast repertoire of all the graphemes/conjuncts/clusters/ligatures that are found in manuscripts written in the Grantha script. Basically, what I am building is a huge table including thousands of small pictures taken from a group of selected manuscripts. The pictures that I am using are of different provenance and quality, so I wrote a Photoshop “action” (basically, a series of commands which can be run routinely) to standardize all the "technical” parameters of the pictures – resolution, brightness, contrast, dimensions, etc. After that, I apply a dimming effect (which can be obtained using the “Level” command in Photoshop) to have the letters clearly legible and, at the same time, to preserve the context in which they appear. The work is still in progress, but the output of this process can be seen in the table on pp. 86-105 of this article published by Giovanni Ciotti and me three years ago: 

With best wishes,

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