Fig. 1From: Low-cost and automated phenotyping system “Phenomenon” for multi-sensor in situ monitoring in plant in vitro cultureHighly challenging imaging situation of plant in vitro cultures. A Culture vessel lid removal offers a proper imaging, but results in the loss of aseptic status of the cultures. Problems for optical monitoring arise from B water condensation, C opacity of culture containers and total internal reflection of ambient or detection light D as well as mirroring of plantlets inside the culture vessel. RGB images were taken from two shoot cultures of Malus spp. The image pairs A–B and C–D each show one image scene B, C with and A, D without lid, respectivelyBack to article page