Relieved from the assessment period, exams, and all the “end of academic term rush”, Daniel has returned to the Physics Department after a few days of break and started his Junior Research Associate work. During the assigned eight weeks of JRA research Daniel is going to investigate the image processing aspects of an interface that would operate the TGD. The focus is placed at the visual-to-tactile preprocessing phase of scanned images. The goal is to find, evaluate and implement techniques which enable downgrading of figures in a way that a tactile file format compatible with the resolution of the TGD can be produced. Tasks involved are for instance a colour to grey scale conversion, rebinning information, discarding textual labels on the axes of a diagram and so on.

Two different approaches are outlined for gathering the necessary information and knowledge. On one hand, standard programming tools such as, the Python Imaging Library with further codes are investigated and combined into a conversion utility. Besides developing a code for downgrading images, the characteristics of various image file formats are investigated as well as properties of colours, existing colour models and so forth.

Secondly, extensive literature review is done on techniques used in extragalactic astronomy and the various image processing techniques used for creating star and galaxy catalogues. Special emphasis is put on the methods developed by researchers working on the data originating from the Herschel Multi-Tiered Extragalactic Survey, in particular the data gathered by the SPIRE instrument.

Daniel is working on the scheduled objectives with the supervision of Dr. Kathy Romer and co-supervision of Dr. Peter Hurley. David Turner is going to join the research at the Department of Physics and Astronomy in a few weeks time to continue building the prototype of the TGD.

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