TY - CONF A1 - Osterloh, Kurt A1 - Zscherpel, Uwe T1 - Ways of digital image processing to obtain fast and unbiased results T2 - 18th WCNDT - World conference on nondestructive testing (Proceedings) N2 - The ultimate purpose of digital image filtering is to support the visual identification of certain features expressed by characteristic shapes and patterns. Numerous recipes, algorithms and ready made programs exist nowadays that predominantly have in common that users have to set certain parameters. Particularly if processing is fast and shows results rather immediately, the choice of parameters may be guided by making the image 'looking nice'. However, in practical situations most users are not in a mood to 'play around' with a displayed image, particularly if they are in a stressy situation as it may encountered in security applications. The requirements for the application of digital image processing under such circumstances will be discussed with an example of automatic filtering without manual parameter settings that even entails the advantage of delivering unbiased results. T2 - 18th WCNDT - World conference on nondestructive testing CY - Durban, South Africa DA - 2012-04-16 KW - Digital Image Processing KW - Digital filter KW - Filter parameter KW - Unbiased image processing KW - Security PY - 2012 SN - 978-0-620-52872-6 SP - 1 EP - 10 (Paper 284) AN - OPUS4-25875 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -