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2 Journal of Applied Computer Science Methods

2 2009

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Optimal Selection of Image Segmentation Algorithm for Heat-Emitting Objects

Fabijanska A, Sankowski D.

Journal of Applied Computer Science Methods

2009

Vol. 1 No. 2

43--51

In this paper problem of image segmentation quality is delibered. Especially, issue of segmentation method selection for images presenting heat-emitting objects is discussed. Particular attention is paid to thresholding method and edge-based image segmentation. Results of applying these methods to exemplary images are presented and discussed.

Optical Filters’ Influence on Digital Image Quality in High Temperature Measurements of Surface Properties

Fabijanska A, Sankowski D.

Journal of Applied Computer Science Methods

2009

Vol. 1 No. 2

53--63

This paper is concerned with high temperature image quantitative analysis systems. Particular attention is paid to computerised system for surface properties (wetting angle and surface tension) determination. A brief description of the system is given. The specificity of the performed measurements based on images presenting heat-emitting objects is considered. Moreover, the significance of optical filters’ usage is explained. Infrared and neutral density filters are regarded. Influence of these filters on digital image quality is deliberated. Especially image noise presence is considered. The detailed analysis of noise properties change due filters usage is carried out. Finally, results of the analysis are presented and discussed.