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Image vision technology for the characterisation of shape and geometrical properties of two varieties of lentil grown in Turkey

Author

Listed:
  • Ebru Firatligil-Durmuş

    (Department of Carbohydrate Chemistry and Technology, Faculty of Food and Biochemical Technology, Institute of Chemical Technology in Prague, Prague, Czech Republic)

  • Evžen Šárka

    (Department of Carbohydrate Chemistry and Technology, Faculty of Food and Biochemical Technology, Institute of Chemical Technology in Prague, Prague, Czech Republic)

  • Zdeněk Bubník

    (Department of Carbohydrate Chemistry and Technology, Faculty of Food and Biochemical Technology, Institute of Chemical Technology in Prague, Prague, Czech Republic)

Abstract

Geometrical features of lentil seeds (Lens culinaris Medik) were analysed using the image analysis LUCIA system Ver. 3.52. The values of the weight of 1000 kernels, kernel density, specific volume, specific surface area, and surface area of 1000 kernels of red and green lentils were determined as 66.61 and 138.56 g, 1504.5 and 1376.4 kg/m3, 0.6647 and 0.7265 cm3/g, 0.594 and 0.579 m2/kg, 395.4 and 801.9 cm2,, respectively. The lentil volume was simulated by an oblate spheroid and two sphere segments and the volumes obtained with both models were compared with that obtained by pycnometric method. Percentage differences of the two sphere segment approximation for red and green lentils were 4.4% and 4.2%, respectively. The height (thickness) of lentils was constant and practically the same with both varieties (2.6 mm) and therefore it was possible to simplify the geometrical models. Thus, 2D image analysis is suitable for a quick evaluation of the specific volume and surface area of grains on the basis of the projected area (equivalent diameter) without the measurement of the height. Image processing provides a simple, rapid, and non-invasive methodology to estimate lentil geometric features and engineering parameters.

Suggested Citation

  • Ebru Firatligil-Durmuş & Evžen Šárka & Zdeněk Bubník, 2008. "Image vision technology for the characterisation of shape and geometrical properties of two varieties of lentil grown in Turkey," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 26(2), pages 109-116.
    • Handle: RePEc:caa:jnlcjf:v:26:y:2008:i:2:id:1-2008-cjfs
    DOI: 10.17221/1/2008-CJFS
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    References listed on IDEAS

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    1. Z. Bubník & P. Kadlec & H. Štarhová & V. Pour & A. Hinková, 2000. "Application of computer image analysis for evaluation and control of the sucrose crystallization process," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 18(1), pages 23-28.
    2. Maria Soral-Śmietana & Urszula Krupa, 2005. "Changes in the macrocomponents and microstructure of white bean seeds upon mild hydrothermal treatment," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 23(2), pages 74-83.
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    Cited by:

    1. Abdolabbas JAFARI & Adel BAKHSHIPOUR, 2014. "Inspection of quince slice dehydration stages based on extractable image features," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 32(5), pages 456-463.

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