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submission_guidelines [2017/03/02 10:04] – [Reflectance Transformation Imaging (RTI)] lafontsubmission_guidelines [2017/04/29 15:09] (current) englund
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 <box 320px right>{{:guidelines_scan_r_te_copy.jpg?300|Fig. 3, Workflow after reverse}}</box|Fig. 3, Workflow after reverse> <box 320px right>{{:guidelines_scan_r_te_copy.jpg?300|Fig. 3, Workflow after reverse}}</box|Fig. 3, Workflow after reverse>
  
-(8) Edges are difficult to scan due to the fact that tablets do not naturally rest on their edges and a tablet that is standing on its edge could be damaged if it falls over onto the surface of the scanner. So it is always best to prop up a tablet on its edge by some means available to you. Ideally, the supporting props employed should be black in color with a matte finish. These black props then disappear or can more easily be erased when producing the archival "fat cross" representation of tablets chosen by the CDLI ([[http://cdli.ucla.edu/dl/photo/P005478.jpg|example]]). Under no circumstances, however, should a colored or textured background be allows to stand above the tablet so as to appear in the background of the tablet image (fig. 4).{{ :guidelines_scan_te.jpg?250|Fig. 4, Scanning the top edge with support}}+(8) Edges are difficult to scan due to the fact that tablets do not naturally rest on their edges and a tablet that is standing on its edge could be damaged if it falls over onto the surface of the scanner. So it is always best to prop up a tablet on its edge by some means available to you. Ideally, the supporting props employed should be black in color with a matte finish. These black props then disappear or can more easily be erased when producing the archival "fatcross" representation of tablets chosen by the CDLI ([[http://cdli.ucla.edu/dl/photo/P005478.jpg|example]]). Under no circumstances, however, should a colored or textured background be allows to stand above the tablet so as to appear in the background of the tablet image (fig. 4).{{ :guidelines_scan_te.jpg?250|Fig. 4, Scanning the top edge with support}}
  
 (9) Keep your eyes on the surface of the scanner to detect the accumulation of dust and fingerprints (as noted above, careful placement of a tablet on the surface of the scanner often requires touching the surface of the scanner with the fingertips, so expect to clean up a lot of fingerprint smudges). Clear any tablets or props off the surface of the scanner, blow any dust or other particles off the surface and clean off any remaining fingerprints or smudges with a piece of lint-free cloth. (9) Keep your eyes on the surface of the scanner to detect the accumulation of dust and fingerprints (as noted above, careful placement of a tablet on the surface of the scanner often requires touching the surface of the scanner with the fingertips, so expect to clean up a lot of fingerprint smudges). Clear any tablets or props off the surface of the scanner, blow any dust or other particles off the surface and clean off any remaining fingerprints or smudges with a piece of lint-free cloth.
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 CDLI requires that its archival images be in a 24 bit RGB format (hence 8-bit channel), even if the image is black and white.  CDLI requires that its archival images be in a 24 bit RGB format (hence 8-bit channel), even if the image is black and white. 
  
-=== Generating a fat cross in Adobe Photoshop ===+=== Generating a fatcross in Adobe Photoshop ===
  
 The following workflow describes step-by-step, how to create the final representation of a tablet in the CDLI database based on images produced by a flatbed scanner.  The following workflow describes step-by-step, how to create the final representation of a tablet in the CDLI database based on images produced by a flatbed scanner. 
submission_guidelines.1488449056.txt.gz · Last modified: 2017/03/02 10:04 by lafont
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