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BTC640/Images

247 bytes added, 16:47, 4 January 2012
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Converting from JPEG to one of the other formats is lossless, but re-encoding it as a JPEG is lossy, so converting it back to JPEG will result in a different image than the original.
 
== Scanning and OCR ==
 
Scanners, different DPIs, target format.
 
Text in a raster image is not the same as the same text in a text file. To convert rasterised text to computer text OCR is needed. The quality of current systems isn't that great.
== Degree Students ==

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