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Notes: 1. For accurate colony counting, the Petri dish should be positioned centrally and photographed perpendicular to the surface, with the entire dish clearly visible, without cropped edges or inscriptions. The culture medium should be uniformly illuminated, without strong reflections, shadows, overexposed or blurred areas. The image should have sufficient resolution to ensure that even small and pale colonies are clearly visible. Avoid images in which the dish is tilted, the lighting differs significantly, or there is condensation, reflections, or objects within the analyzed area. 2. Colonies should be nonpigmented, nonconfluent and grown on nonchromogenic media (i.e. Plate Count Agar / Nutrient Agar).
Red circles show detected colony perimeters. Click a red circle to remove a colony. Click on the centre of an undetected colony to add it manually. The colony count is updated immediately.
