A prototype image comparison tool for QA tasks in SCAPE project

During the SCAPE Scenario Workshop we (AIT) have presernted and discussed the current state of the image comparison tool. The tool facilitates solutions for the following QA problems:

  •  Assembling collections
  •  Avoiding duplicates
  •  Checking collections
  •  Missing images
  •  Make a selection of objects that need to be looked at (duplicates, old/new versions)
  •  Analyze accuracy of collection (possible duplicates, broken files, files with translations, wrong cropping, rotation)
  •  Compare 2 images independent from format in different complexity level (histogram, pixel wise)

Digital Preservation issues associated with image comparison tools are:

  •  Make a selection of objects that need to be looked at (duplicates, old/new versions))
  •  Analyze accuracy of collection (possible duplicates, broken files, files with translations, wrong croppings, rotation)
  •  Compare 2 images independent from format in different complexity level (histogram, pixel wise)
  •  Detect files in question (possibly broken) on one collection & analyze them using impact tools for correction
  •  Using CUDA for parallelisation of collection analysis

By Roman Graf, posted in Roman Graf's Blog

16th Feb 2012  2:00 PM  12511 Reads  No comments

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