13 January 2018 Assessing clutter reduction in parallel coordinates using image processing techniques
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Information visualization has appeared as an important research field for multidimensional data and correlation analysis in recent years. Parallel coordinates (PCs) are one of the popular techniques to visual high-dimensional data. A problem with the PCs technique is that it suffers from crowding, a clutter which hides important data and obfuscates the information. Earlier research has been conducted to reduce clutter without loss in data content. We introduce the use of image processing techniques as an approach for assessing the performance of clutter reduction techniques in PC. We use histogram analysis as our first measure, where the mean feature of the color histograms of the possible alternative orderings of coordinates for the PC images is calculated and compared. The second measure is the extracted contrast feature from the texture of PC images based on gray-level co-occurrence matrices. The results show that the best PC image is the one that has the minimal mean value of the color histogram feature and the maximal contrast value of the texture feature. In addition to its simplicity, the proposed assessment method has the advantage of objectively assessing alternative ordering of PC visualization.
© 2018 SPIE and IS&T
Heba Alhamaydh, Hussein Alzoubi, Hisham Almasaeid, "Assessing clutter reduction in parallel coordinates using image processing techniques," Journal of Electronic Imaging 27(1), 013005 (13 January 2018). https://doi.org/10.1117/1.JEI.27.1.013005 . Submission: Received: 11 June 2017; Accepted: 15 December 2017
Received: 11 June 2017; Accepted: 15 December 2017; Published: 13 January 2018

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