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vol. 10, nr. 1 (2007)
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Application of computer image analysis for fast determination of size and shape of potato tubers
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Marek Gancarz, Krystyna Konstankiewicz
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Institute of Agrophysics, Polish Academy Sciences, ul. Doświadczalna 4, 20-290 Lublin |
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vol. 10 (2007), nr. 1,
pp. 47-57
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abstract:
The paper presents the application of computer image analysis for fast determination of size and shape of potato tubers. In the experiment 30 tubers with different sizes and shapes were tested. Each tuber was weighed with 0.01g accuracy and its diameter was measured with 0.1 mm accuracy. Images of potato tubers were acquired by means of a device consisting of a box chamber with opaque walls, a CCD camera, and a set of bulbs illuminating objects placed inside the chamber for examination. This device permitted photos of the tubers to be taken under conditions of controlled optical parameters. Analysis of obtained images was performed using a set of options of the Aphelion software package. The developed procedure allows fast determination of tuber size and shape during one measurement for many tubers simultaneously. The size of a tuber is described by the area of flat tuber image, while its shape is defined by the elongation of tuber image. The method can be applied for fast estimation of potato tubers in laboratory practice and also for the control of quality and homogeneity of material.
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keywords:
image analysis, potato tuber morphology
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original in:
Polish
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