A method for the determination of quality of granular mixture includes sampling and obtaining digital images of samples, calculation of concentrations of key component in samples on basis of analysis of images of those and calculation of coefficient of inhomogeneity of mixture by deflections of those concentrations with respect to the medium concentration. Dye is used as a control component, its appearance and amount are chosen in such way that dyed and not dyed zones of free-flowing mixture differ by color. The images of granular mixture samples dispersed in thin layer on smooth surfaces as squares with the same dimensions are analyzed. The images are segmented to the colored and not colored zones, with calculation of concentration of key component as part of colored zones areas.
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