Thursday, 4 July 2019

Day 4 of Experiential Learning - Digitization



Image result for digitization






Day 4/12

 My day started off at 09:00 where we arrived at Training room 1 in the Merensky Library, University of Pretoria. We were welcomed into the session by Mrs Lidia Swart who introduced us to the topic of the day which is Digitization. She then introduced us to three of her assistance which will be helping us throughout the session. Mrs Swart then got into the session by defining the term digitization as True colour scamming for preservation and not just desktop scanning or scanning directly to PDF, she further discussed the purpose of Digitization as means to facilitate access and to support current business purposes. According to Mrs Swart the cost of digitization is expensive depending on how costly digitization equipment is, this includes the scanner and other systems. Mrs Swart further got into depth about the workflow of digitization which includes : to Identify a project,selection criteria,copyright,basic preservation on physical material,scanning,file formats,manipulation,web ready and submit or hand over. Mrs Swart then mentioned other factors about Digitization which include: Matters of Reduction and Measuring of books for printing , she then concluded her presentation by saying that digitization is too expensive to think of it as a short term period she then lead us to Level 2 of the Library where the digitization office is.

Mrs Swart and her three assistance then lead us to the digitization office where they showed us three machines that they use, these include the Internet Archive which is a machine that consists of two cannon camera's which scans 500 pages in a book within an hour, after scanning the machine gets into a republishing process where images are then captured. interesting facts about this machine include the fact that it has 7 or more file formats including daisy and pdf and it takes 24 hours to go online after republishing. We then saw two other machines, the Azero machine which takes 3 minutes to scan a single page and the Macro fish scanner. Immediately after visiting the digitization office, we had a 10 minutes break then launched into GIMP application where we did some editing .

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The GIMP application is an interesting plate form to work on, through it we where taught on how to edit a scanned page of a book . We took the following steps to do it on 4 pages before lunch:

  • Check if the page is straight by using a ruler
  • Go to the layer section and choose Arbitrary rotation to rotate the image, so to make it easier to work on. 
  • Go to tools then click on Transform to select the crop option so to crop the scanned page to a suitable size. 
  • Go to Image and select mode and then grey scale to change the back group of the page.
  • Select the Rectangle on the tool bar to edit the back group through pressing delete on the key board.
  • Change the canvas size through selecting the option Image.
  • Go to Image to flatten the image 
  • Go to Colors to change the color levels
  • then lastly export the edited scanned page as a form of saving it .
Scanned Page before editing on GIMP

Scanned Page After editing on GIMP

Immediately after Lunch Mrs Swart showed us a 3D scanner named the Iscan Pro and explained to us  how it works practically and then Mrs Swart concluded today's session by having us combine all the scanned pages we have edited by using Adobe Acrobat Pro.

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