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Image processing algorithms in the assessment of grain damage degree

Maliga Wojciech, Dudziński Włodzimierz, Łabowska Magdalena, Detyna Jerzy, Łopusiewicz Marcin, Bujak Henryk

Bio-Algorithms and Med-Systems

2022

Vol. 18, no. 1

17--28

Objectives: The paper presents preliminary results on the assessment of algorithms used in image processing of the grain damage degree. The purpose of the work is developing a tool allowing to analyse sample cross-sections of rye germs. Methods: The analysis of the grain cross-sections was carried out on the basis of a series their photos taken at equal time intervals at a set depth. The cross-sections will be used to create additional virtual cross-sections allowing to analyse the whole sample volume. The ultimate plan is to generate two cross-sections perpendicular to each other. Based on volumetric data read from the sample section, a three-dimensional model of an object will be generated. Results: The analysis of model surface will allowed us to detect possible grain damage. The developed method of preparing the research material and the proprietary application allowed for the identification of internal defects in the biological material (cereal grains). Conclusions: The presented methodology may be used in the agri-food industry in the future. However, much research remains to be done. These works should primarily aim at significantly reducing the time-consuming nature of individual stages, as well as improving the quality of the reconstructed image.

Cladophora glomerata extract and static magnetic field influences the germination of seeds and multielemental composition of carrot

Michalak Izabela, Bartniczak Annika, Baśladyńska Sylwia, Lewandowska Sylwia, Detyna Jerzy, Łoziński Michał, Niemczyk Katarzyna, Bujak Henryk

Ecological Chemistry and Engineering. S

2020

Vol. 27, nr 4

629--641

As carrot seeds are notoriously slow to germinate and are often irregular in breaking dormancy, new methods of stimulation are still sought. This study examines for the first time the effect of an algal extract and static magnetic field (SMF) and their synergistic effect on carrot seeds germination. The algal extract, produced from freshwater macroalgae - Cladophora glomerata, was used directly to the paper substrate at a dose of 20, 40, 60, 80 and 100 %. The exposure of seeds to the magnetic field (500 mT and 1 T) was applied for 3, 6 and 12 min. The highest germination ability of carrot seedlings was observed for 20 and 80 % algal extract. The weakest germination was observed for the highest concentration of algal extract causing the highest amount of abnormal and dead seedlings. Parallel use of seeds stimulated with magnetic field and algal extract did not increase the number of germinated seeds significantly. Carrot’s seeds treated with algal extract showed increased content of elements - macro- Ca, K, Mg, S and microelements Cu, Fe, Mn and Zn. Future experiments are required to confirm the stimulation effect of algal extract (optimal concentration) and magnetic field (various induction values) on seeds germination.