RT Journal Article SR Electronic A1 Koňas, Petr T1 Evaluation of fractal dimensions from bitmap image (Part: Algorithms) JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis YR 2015 VO 52 IS 1 SP 175 OP 182 DO 10.11118/actaun200452010175 UL https://acta.mendelu.cz/artkey/acu-200401-0019.php AB The work assembled the complex application for evaluation of main fractal characteristics from input image. New simple modifications of evaluation of positive cells according to appropriate scale were implemented. Detail description of theory for each method and description of evaluation process was included. Filtration modification (which is able to estimate the structure which belongs only to specified scale) was introduced together with volumetric modification that allows selecting of optional ratio for determination of positive cells. Also, Richardson method and Slit-Island method were converted to algorithm form. Program was compiled for processing of the following projects about influence between fractal dimensions and mechanical properties of tested materials.