Sven's Workflows

Hadoop hOCR parser (1)

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Big data processing: chaining Hadoop jobs using Taverna. This workflow demonstrates a simple way of linking different hadoop job components using the standard output of the hadoop jobs. It is not for thought for productive use, but for demonstration using small data sets. The code for the hadoop jobs is available on Github: tb-lsdr-hocrparser and tb-lsdr-seqfilecreator.

Created: 2012-08-07 | Last updated: 2012-08-07

Credits: Sven

A heuristic measure for detecting undesire... (2)

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The workflow takes TIFF image instances as input, applies a list of JP2 compression parameter values, executes OCR using an open source OCR engine, evaluates the results, and creates a diagram visualising the results. Dependencies on external tools for the tool service components: Tesseract ImageMagick Kakadu Gnuplot Dependencies on external Java libraries of beanshells: Apache commons lang

Created: 2012-02-06 | Last updated: 2012-03-09

Credits: Sven

Detect compressed TIFF files and remove th... (3)

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The workflow takes a list of TIFF images as input, identifies the "Group 4 Fax" comressed TIFF images and converts them to uncompressed TIFF images using convert. Finally it characterises the converted image. This version of the workflow replaces the web services of the original workflow with tool services.

Created: 2011-06-15 | Last updated: 2012-03-08

Credits: Sven

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